Merge pull request 'tests/keycloak: try to reduce flakyness' (#284) from fix-keycloak-test into main

Reviewed-on: pub-solar/infra#284
Reviewed-by: Akshay Mankar <axeman@noreply.git.pub.solar>

.editorconfig

@@ -0,0 +1,43 @@
+# Editor configuration, see http://editorconfig.org
+root = true
+
+[*]
+end_of_line = lf
+insert_final_newline = true
+trim_trailing_whitespace = true
+charset = utf-8
+indent_style = space
+indent_size = 2
+
+# Ignore diffs/patches
+[*.{diff,patch}]
+end_of_line = unset
+insert_final_newline = unset
+trim_trailing_whitespace = unset
+indent_size = unset
+charset = unset
+indent_style = unset
+indent_size = unset
+
+[{.*,secrets}/**]
+end_of_line = false
+insert_final_newline = false
+trim_trailing_whitespace = unset
+charset = unset
+indent_style = unset
+indent_size = unset
+
+[*.rom]
+end_of_line = unset
+insert_final_newline = unset
+trim_trailing_whitespace = unset
+charset = unset
+indent_style = unset
+indent_size = unset
+
+[*.py]
+indent_size = 4
+
+[*.md]
+max_line_length = off
+trim_trailing_whitespace = false

.forgejo/workflows/check.yml

@@ -1,71 +1,37 @@
 name: Flake checks
 on: [pull_request]
-env:
-  USER: ci
 
 jobs:
   Check:
-    runs-on: ubuntu-latest
+    runs-on: self-hosted
     steps:
       - name: Check out repository code
         uses: https://code.forgejo.org/actions/checkout@v4
 
-      - uses: https://github.com/nixbuild/nix-quick-install-action@v27
-        with:
-          load_nixConfig: false
-          nix_conf: |
-            substituters = https://cache.nixos.org/ https://nix-community.cachix.org
-            trusted-public-keys = cache.nixos.org-1:6NCHdD59X431o0gWypbMrAURkbJ16ZPMQFGspcDShjY= nix-community.cachix.org-1:mB9FSh9qf2dCimDSUo8Zy7bkq5CX+/rkCWyvRCYg3Fs=
-            keep-outputs = true
-
-      - name: Calculate flake.lock hash
-        id: flake-lock-hash
+      - name: Check formatting
         run: |
-          echo "hash=$(md5sum flake.lock | awk '{print $1}')" >> $GITHUB_OUTPUT
-
-      - name: Restore and cache Nix store
-        uses: https://github.com/nix-community/cache-nix-action@v4.0.3
-        id: nix-store-cache
-        with:
-          key: cache-${{ runner.os }}-nix-store-${{ steps.flake-lock-hash.outputs.hash }}
-          restore-keys: |
-            cache-${{ runner.os }}-nix-store-
-
-          gc-linux: true
-          gc-max-store-size-linux: 10000000000
-
-          purge-caches: true
-          purge-key: cache-${{ runner.os }}-nix-store-
-          purge-created: true
-          purge-created-max-age: 42
-
-      - name: Prepare cachix
-        uses: https://github.com/cachix/cachix-action@v14
-        with:
-          name: pub-solar
-          authToken: '${{ secrets.CACHIX_AUTH_TOKEN }}'
-          useDaemon: false
+          nix --accept-flake-config --access-tokens '' develop --command treefmt --ci
 
       - name: Run flake checks
         run: |
+          set -exuo pipefail
           # Prevent cache garbage collection by creating GC roots
-          for target in $(nix flake show --json --all-systems | jq '
+          mkdir -p /var/lib/gitea-runner/tankstelle/.local/state/nix/results
+
+          for target in $(nix flake show --json --all-systems | jq --raw-output '
             .["nixosConfigurations"] |
             to_entries[] |
-            .key
-            ' | tr -d '"'
+            .key'
           ); do
             nix --print-build-logs --verbose --accept-flake-config --access-tokens '' \
-              build --out-link ./result-$target ".#nixosConfigurations.${target}.config.system.build.toplevel"
+              build --out-link /var/lib/gitea-runner/tankstelle/.local/state/nix/results/"$target" ".#nixosConfigurations.${target}.config.system.build.toplevel"
           done
 
-          nix --print-build-logs --verbose --accept-flake-config --access-tokens '' flake check
-
-          # Add GC roots for flake inputs, too
-          # https://github.com/NixOS/nix/issues/4250#issuecomment-1146878407
-          mkdir --parents "$NIX_USER_PROFILE_DIR"
-          gc_root_prefix="$NIX_USER_PROFILE_DIR"/infra-flake-
-          echo "Adding gcroots flake inputs with prefix $gc_root_prefix ..."
-          nix flake archive --json 2>/dev/null | jq --raw-output '.inputs | to_entries[] | "ln --force --symbolic --no-target-directory "+.value.path+" \"'"$gc_root_prefix"'"+.key+"\""' | while read -r line; do
-            eval "$line"
+          for check in $(nix flake show --json --all-systems | jq --raw-output '
+            .checks."x86_64-linux" |
+            to_entries[] |
+            .key'
+          ); do
+            nix --print-build-logs --verbose --accept-flake-config --access-tokens '' \
+              build --out-link /var/lib/gitea-runner/tankstelle/.local/state/nix/results/"$check" ".#checks.x86_64-linux.${check}"
           done

.git-blame-ignore-revs

@@ -1,2 +1,4 @@
+# Apply treewide formatting with treefmt
+2ca0bd7c3e743e699edb6e9c09d48b7c9106a64d
 # Apply treewide formatting with nixpkgs-fmt
 815033c764660e1468b1564a02570bad0f84f77a

.gitignore

@@ -4,3 +4,4 @@
 .terraform
 *.plan
 result
+results

CONTRIBUTING.md

@@ -0,0 +1,35 @@
+# Contributing guide
+
+Things you'll need:
+
+- To create [Pull Requests](https://forgejo.org/docs/latest/user/pull-requests-and-git-flow/), you will need to register your [pub.solar ID](https://auth.pub.solar) first.
+- For small changes, e.g. to documentation, you can directly edit files in the browser.
+
+### Getting a development shell
+
+First, get a local copy of this repository:
+
+```
+git clone https://git.pub.solar/pub-solar/infra.git
+cd infra
+```
+
+then, install [the package manager nix](https://nixos.org/download).
+
+Finally, run:
+
+```
+nix develop
+```
+
+This will install a development shell (devshell) with all required tools.
+
+### Final checks before creating a Pull Request
+
+Before creating a pull request, it's recommended to check the formatting:
+
+```
+treefmt
+```
+
+If you are a terminal-lover, the [AGit alternative](https://forgejo.org/docs/latest/user/agit-support/) to the web based Pull Request workflow might be interesting.

LICENSE.md

@@ -0,0 +1,660 @@
+### GNU AFFERO GENERAL PUBLIC LICENSE
+
+Version 3, 19 November 2007
+
+Copyright (C) 2007 Free Software Foundation, Inc.
+<https://fsf.org/>
+
+Everyone is permitted to copy and distribute verbatim copies of this
+license document, but changing it is not allowed.
+
+### Preamble
+
+The GNU Affero General Public License is a free, copyleft license for
+software and other kinds of works, specifically designed to ensure
+cooperation with the community in the case of network server software.
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+The licenses for most software and other practical works are designed
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+When we speak of free software, we are referring to freedom, not
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+Developers that use our General Public Licenses protect your rights
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+not impose a license fee, royalty, or other charge for exercise of
+rights granted under this License, and you may not initiate litigation
+(including a cross-claim or counterclaim in a lawsuit) alleging that
+any patent claim is infringed by making, using, selling, offering for
+sale, or importing the Program or any portion of it.
+
+#### 11. Patents.
+
+A "contributor" is a copyright holder who authorizes use under this
+License of the Program or a work on which the Program is based. The
+work thus licensed is called the contributor's "contributor version".
+
+A contributor's "essential patent claims" are all patent claims owned
+or controlled by the contributor, whether already acquired or
+hereafter acquired, that would be infringed by some manner, permitted
+by this License, of making, using, or selling its contributor version,
+but do not include claims that would be infringed only as a
+consequence of further modification of the contributor version. For
+purposes of this definition, "control" includes the right to grant
+patent sublicenses in a manner consistent with the requirements of
+this License.
+
+Each contributor grants you a non-exclusive, worldwide, royalty-free
+patent license under the contributor's essential patent claims, to
+make, use, sell, offer for sale, import and otherwise run, modify and
+propagate the contents of its contributor version.
+
+In the following three paragraphs, a "patent license" is any express
+agreement or commitment, however denominated, not to enforce a patent
+(such as an express permission to practice a patent or covenant not to
+sue for patent infringement). To "grant" such a patent license to a
+party means to make such an agreement or commitment not to enforce a
+patent against the party.
+
+If you convey a covered work, knowingly relying on a patent license,
+and the Corresponding Source of the work is not available for anyone
+to copy, free of charge and under the terms of this License, through a
+publicly available network server or other readily accessible means,
+then you must either (1) cause the Corresponding Source to be so
+available, or (2) arrange to deprive yourself of the benefit of the
+patent license for this particular work, or (3) arrange, in a manner
+consistent with the requirements of this License, to extend the patent
+license to downstream recipients. "Knowingly relying" means you have
+actual knowledge that, but for the patent license, your conveying the
+covered work in a country, or your recipient's use of the covered work
+in a country, would infringe one or more identifiable patents in that
+country that you have reason to believe are valid.
+
+If, pursuant to or in connection with a single transaction or
+arrangement, you convey, or propagate by procuring conveyance of, a
+covered work, and grant a patent license to some of the parties
+receiving the covered work authorizing them to use, propagate, modify
+or convey a specific copy of the covered work, then the patent license
+you grant is automatically extended to all recipients of the covered
+work and works based on it.
+
+A patent license is "discriminatory" if it does not include within the
+scope of its coverage, prohibits the exercise of, or is conditioned on
+the non-exercise of one or more of the rights that are specifically
+granted under this License. You may not convey a covered work if you
+are a party to an arrangement with a third party that is in the
+business of distributing software, under which you make payment to the
+third party based on the extent of your activity of conveying the
+work, and under which the third party grants, to any of the parties
+who would receive the covered work from you, a discriminatory patent
+license (a) in connection with copies of the covered work conveyed by
+you (or copies made from those copies), or (b) primarily for and in
+connection with specific products or compilations that contain the
+covered work, unless you entered into that arrangement, or that patent
+license was granted, prior to 28 March 2007.
+
+Nothing in this License shall be construed as excluding or limiting
+any implied license or other defenses to infringement that may
+otherwise be available to you under applicable patent law.
+
+#### 12. No Surrender of Others' Freedom.
+
+If conditions are imposed on you (whether by court order, agreement or
+otherwise) that contradict the conditions of this License, they do not
+excuse you from the conditions of this License. If you cannot convey a
+covered work so as to satisfy simultaneously your obligations under
+this License and any other pertinent obligations, then as a
+consequence you may not convey it at all. For example, if you agree to
+terms that obligate you to collect a royalty for further conveying
+from those to whom you convey the Program, the only way you could
+satisfy both those terms and this License would be to refrain entirely
+from conveying the Program.
+
+#### 13. Remote Network Interaction; Use with the GNU General Public License.
+
+Notwithstanding any other provision of this License, if you modify the
+Program, your modified version must prominently offer all users
+interacting with it remotely through a computer network (if your
+version supports such interaction) an opportunity to receive the
+Corresponding Source of your version by providing access to the
+Corresponding Source from a network server at no charge, through some
+standard or customary means of facilitating copying of software. This
+Corresponding Source shall include the Corresponding Source for any
+work covered by version 3 of the GNU General Public License that is
+incorporated pursuant to the following paragraph.
+
+Notwithstanding any other provision of this License, you have
+permission to link or combine any covered work with a work licensed
+under version 3 of the GNU General Public License into a single
+combined work, and to convey the resulting work. The terms of this
+License will continue to apply to the part which is the covered work,
+but the work with which it is combined will remain governed by version
+3 of the GNU General Public License.
+
+#### 14. Revised Versions of this License.
+
+The Free Software Foundation may publish revised and/or new versions
+of the GNU Affero General Public License from time to time. Such new
+versions will be similar in spirit to the present version, but may
+differ in detail to address new problems or concerns.
+
+Each version is given a distinguishing version number. If the Program
+specifies that a certain numbered version of the GNU Affero General
+Public License "or any later version" applies to it, you have the
+option of following the terms and conditions either of that numbered
+version or of any later version published by the Free Software
+Foundation. If the Program does not specify a version number of the
+GNU Affero General Public License, you may choose any version ever
+published by the Free Software Foundation.
+
+If the Program specifies that a proxy can decide which future versions
+of the GNU Affero General Public License can be used, that proxy's
+public statement of acceptance of a version permanently authorizes you
+to choose that version for the Program.
+
+Later license versions may give you additional or different
+permissions. However, no additional obligations are imposed on any
+author or copyright holder as a result of your choosing to follow a
+later version.
+
+#### 15. Disclaimer of Warranty.
+
+THERE IS NO WARRANTY FOR THE PROGRAM, TO THE EXTENT PERMITTED BY
+APPLICABLE LAW. EXCEPT WHEN OTHERWISE STATED IN WRITING THE COPYRIGHT
+HOLDERS AND/OR OTHER PARTIES PROVIDE THE PROGRAM "AS IS" WITHOUT
+WARRANTY OF ANY KIND, EITHER EXPRESSED OR IMPLIED, INCLUDING, BUT NOT
+LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+A PARTICULAR PURPOSE. THE ENTIRE RISK AS TO THE QUALITY AND
+PERFORMANCE OF THE PROGRAM IS WITH YOU. SHOULD THE PROGRAM PROVE
+DEFECTIVE, YOU ASSUME THE COST OF ALL NECESSARY SERVICING, REPAIR OR
+CORRECTION.
+
+#### 16. Limitation of Liability.
+
+IN NO EVENT UNLESS REQUIRED BY APPLICABLE LAW OR AGREED TO IN WRITING
+WILL ANY COPYRIGHT HOLDER, OR ANY OTHER PARTY WHO MODIFIES AND/OR
+CONVEYS THE PROGRAM AS PERMITTED ABOVE, BE LIABLE TO YOU FOR DAMAGES,
+INCLUDING ANY GENERAL, SPECIAL, INCIDENTAL OR CONSEQUENTIAL DAMAGES
+ARISING OUT OF THE USE OR INABILITY TO USE THE PROGRAM (INCLUDING BUT
+NOT LIMITED TO LOSS OF DATA OR DATA BEING RENDERED INACCURATE OR
+LOSSES SUSTAINED BY YOU OR THIRD PARTIES OR A FAILURE OF THE PROGRAM
+TO OPERATE WITH ANY OTHER PROGRAMS), EVEN IF SUCH HOLDER OR OTHER
+PARTY HAS BEEN ADVISED OF THE POSSIBILITY OF SUCH DAMAGES.
+
+#### 17. Interpretation of Sections 15 and 16.
+
+If the disclaimer of warranty and limitation of liability provided
+above cannot be given local legal effect according to their terms,
+reviewing courts shall apply local law that most closely approximates
+an absolute waiver of all civil liability in connection with the
+Program, unless a warranty or assumption of liability accompanies a
+copy of the Program in return for a fee.
+
+END OF TERMS AND CONDITIONS
+
+### How to Apply These Terms to Your New Programs
+
+If you develop a new program, and you want it to be of the greatest
+possible use to the public, the best way to achieve this is to make it
+free software which everyone can redistribute and change under these
+terms.
+
+To do so, attach the following notices to the program. It is safest to
+attach them to the start of each source file to most effectively state
+the exclusion of warranty; and each file should have at least the
+"copyright" line and a pointer to where the full notice is found.
+
+        <one line to give the program's name and a brief idea of what it does.>
+        Copyright (C) <year>  <name of author>
+
+        This program is free software: you can redistribute it and/or modify
+        it under the terms of the GNU Affero General Public License as
+        published by the Free Software Foundation, either version 3 of the
+        License, or (at your option) any later version.
+
+        This program is distributed in the hope that it will be useful,
+        but WITHOUT ANY WARRANTY; without even the implied warranty of
+        MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+        GNU Affero General Public License for more details.
+
+        You should have received a copy of the GNU Affero General Public License
+        along with this program.  If not, see <https://www.gnu.org/licenses/>.
+
+Also add information on how to contact you by electronic and paper
+mail.
+
+If your software can interact with users remotely through a computer
+network, you should also make sure that it provides a way for users to
+get its source. For example, if your program is a web application, its
+interface could display a "Source" link that leads users to an archive
+of the code. There are many ways you could offer source, and different
+solutions will be better for different programs; see section 13 for
+the specific requirements.
+
+You should also get your employer (if you work as a programmer) or
+school, if any, to sign a "copyright disclaimer" for the program, if
+necessary. For more information on this, and how to apply and follow
+the GNU AGPL, see <https://www.gnu.org/licenses/>.

README.md

@@ -6,6 +6,6 @@ The architecture we are working towards is a vast simplification of what it was
 
 ## Contributing
 
-If you'd like to contribute, it makes sense to talk to the crew on Matrix via [#hakken](https://matrix.to/#/#hakken:pub.solar?via=chat.pub.solar). We can help figuring out how things work and can make sure your ideas fit the pub.solar philosophy. Of course [popping a pull request](https://docs.gitea.com/next/usage/pull-request#creating-a-pull-request) is always celebrated.
+If you'd like to contribute, it makes sense to talk to the crew on Matrix via [#hakken](https://matrix.to/#/#hakken:pub.solar?via=chat.pub.solar). We can help figuring out how things work and can make sure your ideas fit the pub.solar philosophy. Of course [popping a pull request](https://forgejo.org/docs/latest/user/pull-requests-and-git-flow/) is always celebrated.
 
-To start, see [how to get a development shell](./docs/development-shell.md).
+To start, check our [contributing guide](./CONTRIBUTING.md).

docs/administrative-access.md

@@ -14,7 +14,7 @@ People with admin access to the infrastructure are added to [`logins/admins.nix`
                 publicKey = <pubkey-string>;
                 allowedIPs = [ "10.7.6.<ip-address>/32" "fd00:fae:fae:fae:fae:<ip-address>::/96" ];
             }
-        }];
+        ];
 
         secretEncryptionKeys = {
             <name> = <encryption-key-string>;
@@ -28,7 +28,96 @@ People with admin access to the infrastructure are added to [`logins/admins.nix`
 SSH is not reachable from the open internet. Instead, SSH Port 22 is protected by a wireguard VPN network. Thus, to get root access on the servers, at least two pieces of information have to be added to the admins config:
 
 1. **SSH Public key**: self-explanatory. Add your public key to your user attrset under `sshPubKeys`.
-2. **Wireguard device**: each wireguard device has two parts: the public key and the IP addresses it should have in the wireguard network. The pub.solar wireguard network is spaced under `10.7.6.0/24` and `fd00:fae:fae:fae:fae::/80`. To add your device, it's best to choose a free number between 200 and 255 and use that in both the ipv4 and ipv6 ranges: `10.7.6.<ip-address>/32` `fd00:fae:fae:fae:fae:<ip-address>::/96`. For more information on how to generate keypairs, see [the NixOS Wireguard docs](https://nixos.wiki/wiki/WireGuard#Generate_keypair).
+2. **Wireguard device**: each wireguard device has two parts: the public key and the IP addresses it should have in the wireguard network. The pub.solar wireguard network uses the subnets `10.7.6.0/24` and `fd00:fae:fae:fae:fae::/80`. To add your device, it's best to choose a free number between 200 and 255 and use that in both the ipv4 and ipv6 ranges: `10.7.6.<ip-address>/32` `fd00:fae:fae:fae:fae:<ip-address>::/96`. For more information on how to generate keypairs, see [the NixOS Wireguard docs](https://nixos.wiki/wiki/WireGuard#Generate_keypair).
+
+One can access our hosts using this domain scheme:
+
+```
+ssh <unix-username>@<hostname>.wg.pub.solar
+```
+
+So, for example for `nachtigall`:
+
+```
+ssh teutat3s@nachtigall.wg.pub.solar
+```
+
+Example NixOS snippet for WireGuard client config
+
+```
+{
+  networking = {
+    wireguard.enable = true;
+    wg-quick.interfaces = {
+      wg-pub-solar = {
+        address = ["10.7.6.201/32"];
+        address = ["10.7.6.201/32" "fd00:fae:fae:fae:fae:201::/96"];
+        privateKeyFile = "/etc/wireguard/wg-pub-solar.privatekey";
+
+        peers = [
+          { # nachtigall.pub.solar
+            publicKey = "qzNywKY9RvqTnDO8eLik75/SHveaSk9OObilDzv+xkk=";
+            allowedIPs = [ "10.7.6.1/32" "fd00:fae:fae:fae:fae:1::/96" ];
+            endpoint = "[2a01:4f8:172:1c25::1]:51820";
+            # Use this endpoint in IPv4 only networks
+            #endpoint = "138.201.80.102:51820";
+            persistentKeepalive = 15;
+          }
+          { # metronom.pub.solar
+            publicKey = "zOSYGO7MfnOOUnzaTcWiKRQM0qqxR3JQrwx/gtEtHmo=";
+            allowedIPs = [ "10.7.6.3/32" "fd00:fae:fae:fae:fae:3::/96" ];
+            #endpoint = "[2a01:4f8:c2c:7082::]:51820";
+            # Use this endpoint in IPv4 only networks
+            endpoint = "49.13.236.167:51820";
+            persistentKeepalive = 15;
+          }
+          { # tankstelle.pub.solar
+            publicKey = "iRTlY1lB7nPXf2eXzX8ZZDkfMmXyGjff5/joccbP8Cg=";
+            allowedIPs = [ "10.7.6.4/32" "fd00:fae:fae:fae:fae:4::/96" ];
+            endpoint = "[2001:4d88:1ffa:26::5]:51820";
+            # Use this endpoint in IPv4 only networks
+            #endpoint = "80.244.242.5:51820";
+            persistentKeepalive = 15;
+          }
+          {
+            # trinkgenossin.pub.solar
+            publicKey = "QWgHovHxtqiQhnHLouSWiT6GIoQDmuvnThYL5c/rvU4=";
+            allowedIPs = [
+              "10.7.6.5/32"
+              "fd00:fae:fae:fae:fae:5::/96"
+            ];
+            #endpoint = "85.215.152.22:51820";
+            endpoint = "[2a01:239:35d:f500::1]:51820";
+            persistentKeepalive = 15;
+          }
+          {
+            # delite.pub.solar
+            publicKey = "ZT2qGWgMPwHRUOZmTQHWCRX4m14YwOsiszjsA5bpc2k=";
+            allowedIPs = [
+              "10.7.6.6/32"
+              "fd00:fae:fae:fae:fae:6::/96"
+            ];
+            #endpoint = "5.255.119.132:51820";
+            endpoint = "[2a04:52c0:124:9d8c::2]:51820";
+            persistentKeepalive = 15;
+          }
+          {
+            # blue-shell.pub.solar
+            publicKey = "bcrIpWrKc1M+Hq4ds3aN1lTaKE26f2rvXhd+93QrzR8=";
+            allowedIPs = [
+              "10.7.6.7/32"
+              "fd00:fae:fae:fae:fae:7::/96"
+            ];
+            #endpoint = "194.13.83.205:51820";
+            endpoint = "[2a03:4000:43:24e::1]:51820";
+            persistentKeepalive = 15;
+          }
+        ];
+      };
+    };
+  };
+}
+```
 
 # Secret encryption
 

docs/backups.md

@@ -0,0 +1,36 @@
+# Backups
+
+We use [Restic](https://restic.readthedocs.io/en/stable/) to create backups and push them to two repositories.
+Check `./modules/backups.nix` and `./hosts/nachtigall/backups.nix` for working examples.
+
+### Hetzner Storagebox
+
+- Uses SFTP for transfer of backups
+
+Adding a new host SSH public key to the storagebox:
+
+First, [SSH to nachtigall](./administrative-access.md#ssh-access), then become root and add the new SSH public key
+
+```
+sudo -i
+echo '<ssh-public-key>' | ssh -p23 u377325@u377325.your-storagebox.de install-ssh-key
+```
+
+[Link to Hetzner storagebox docs](https://docs.hetzner.com/robot/storage-box/backup-space-ssh-keys).
+
+### Garage S3 buckets
+
+- Uses S3 for transfer of backups
+- One bucket per host, e.g. `nachtigall-backups`, `metronom-backups`
+
+To start transfering backups from a new hosts, this is how to create a new bucket:
+
+First, [SSH to trinkgenossin](./administrative-access.md#ssh-access), then use the `garage` CLI to create a new key and bucket:
+
+```
+export GARAGE_RPC_SECRET=<secret-in-keepass>
+
+garage bucket create <hostname>-backups
+garage key create <hostname>-backups-key
+garage bucket allow <hostname>-backups --read --write --key <hostname>-backups-key
+```

docs/cachix.md

@@ -0,0 +1,55 @@
+# Cachix usage
+
+URL: https://pub-solar.cachix.org
+
+Requirements:
+
+- [Install cachix](https://docs.cachix.org/installation)
+- Optional: To push to the cache, you need to set `CACHIX_AUTH_TOKEN` in your environment. To generate one for you, follow the [Getting Started](https://docs.cachix.org/getting-started#authenticating) docs and login with your GitHub account.
+- Add our binary cache [to your nix config](https://docs.cachix.org/faq#cachix-use-effects). To add the pub-solar cache, run:
+
+```
+cachix use pub-solar
+```
+
+Example to build and push a custom package of a host in this flake (e.g. after creating an overlay):
+
+```
+nix build --json -f . '.#nixosConfigurations.nachtigall.pkgs.keycloak^*' \
+  | jq -r '.[].outputs | to_entries[].value' \
+  | cachix push pub-solar
+```
+
+Example to build and push a package in the `nixpkgs` repo:
+
+```
+cd nixpkgs
+nix build --json -f . 'pkgs.lix^*' \
+  | jq -r '.[].outputs | to_entries[].value' \
+  | cachix push pub-solar
+```
+
+Checking if a package has been correctly pushed to the cache:
+
+```
+❯ nix build --json '/nix/store/f76xi83z4xk9sn6pbh38rh97yvqhb5m0-noto-fonts-color-emoji-png-2.042.drv^*' | jq -r '.[].outputs | to_entries[].value'  | cachix push pub-solar
+Pushing 1 paths (0 are already present) using zstd to cache pub-solar ⏳
+
+✓ /nix/store/xpgpi84765dxqja3gd5pldj49xx2v0xl-noto-fonts-color-emoji-png-2.042 (10.30 MiB)
+
+All done.
+
+❯ curl -I https://pub-solar.cachix.org/xpgpi84765dxqja3gd5pldj49xx2v0xl.narinfo
+HTTP/2 200
+date: Mon, 26 Aug 2024 09:31:10 GMT
+content-type: text/x-nix-narinfo
+traceparent: 00-b99db37cc9c2581b8d226cdf81e54507-794fc49193659c03-01
+tracestate:
+cache-control: public, max-age=14400
+last-modified: Mon, 26 Aug 2024 09:31:10 GMT
+cf-cache-status: EXPIRED
+report-to: {"endpoints":[{"url":"https:\/\/a.nel.cloudflare.com\/report\/v4?s=A67KGsCIsYjoFdvndxJ0rkmb7BZ5ztIpm8WUJKAiUPRVWvbYeXU9gU27P7zryiUtArbwrLzHhhMija0yyXk0kwNa3suz8gNzKK6z1CX1FWDZiiP07rnq7zAg8nZbSBiEU%2FZrU9nSrR6mhuL9ihbmW1Hf"}],"group":"cf-nel","max_age":604800}
+nel: {"success_fraction":0,"report_to":"cf-nel","max_age":604800}
+server: cloudflare
+cf-ray: 8b92ceab0d19c80e-DUS
+```

docs/deletion-request.md

@@ -1,13 +1,16 @@
 # Process for handling a deletion request
 
 ### Keycloak
-Required:
-- auth.pub.solar ops user credentials
-- SSH access to host nachtigall
-```
-ssh barkeeper@nachtigall.pub.solar
 
-sudo --user keycloak kcadm.sh config credentials --config /tmp/kcadm.config --server http://localhost:8080 --realm pub.solar --user ops
+Required:
+
+- auth.pub.solar `admin-cli` service user credentials
+- [SSH access to host `nachtigall`](./administrative-access.md#ssh-access)
+
+Run each of the following after SSH'ing to `nachtigall`:
+
+```
+sudo --user keycloak kcadm.sh config credentials --config /tmp/kcadm.config --server http://localhost:8080 --realm pub.solar --client admin-cli
 
 # Take note of user id in response from following command
 sudo --user keycloak kcadm.sh get --config /tmp/kcadm.config users --realm pub.solar --query email=<email-address>
@@ -20,42 +23,38 @@ sudo --user keycloak kcadm.sh update --config /tmp/kcadm.config users/2ec6f173-3
 
 Docs: https://www.keycloak.org/docs/latest/server_admin/index.html#updating-a-user
 
-
 ### Nextcloud
+
 ```
-ssh barkeeper@nachtigall.pub.solar
 nextcloud-occ user:delete <username>
 ```
 
 Docs: https://docs.nextcloud.com/server/latest/admin_manual/configuration_server/occ_command.html#user-commands-label
 
-
 ### Mastodon
+
 ```
-ssh barkeeper@nachtigall.pub.solar
 sudo -u mastodon mastodon-tootctl accounts delete --email <mail-address>
 ```
 
 Docs: https://docs.joinmastodon.org/admin/tootctl/#accounts-delete
 
-
 ### Forgejo
+
 ```
-ssh barkeeper@nachtigall.pub.solar
 sudo -u gitea gitea admin user delete --config /var/lib/forgejo/custom/conf/app.ini --purge --email <mail-address>
 ```
 
 Docs: https://forgejo.org/docs/latest/admin/command-line/#delete
 
-
 ### Matrix
+
 ```
-ssh bartender@matrix.pub.solar -p 2020
-curl --header "Authorization: Bearer <admin-access-token>" --request POST http://172.18.0.3:8008/_synapse/admin/v1/deactivate/@<username>:pub.solar --data '{"erase": true}'
+curl --header "Authorization: Bearer <admin-access-token>" --request POST http://127.0.0.1:8008/_synapse/admin/v1/deactivate/@<username>:pub.solar --data '{"erase": true}'
 ```
 
 Docs: https://matrix-org.github.io/synapse/latest/admin_api/user_admin_api.html#deactivate-account
 
-
 ### OpenBikeSensor
+
 Not implemented, see: https://github.com/openbikesensor/portal/issues/95

docs/deploying.md

@@ -7,14 +7,29 @@ be manually deployed.
 To deploy, make sure you have a [working development shell](./development-shell.md).
 Then, run `deploy-rs` with the hostname of the server you want to deploy:
 
+### Dry-run
+
+Use `--dry-activate` to show a diff of updated packages and all services that
+would be restarted by the update. This will also put all files in place without
+switching to the new generation, enabling a quick switch to the new config at a
+later moment.
+
 For nachtigall.pub.solar:
+
 ```
-deploy --targets '.#nachtigall' --magic-rollback false --auto-rollback false
+deploy --targets '.#nachtigall' --ssh-user <unix-username> --magic-rollback false --auto-rollback false --keep-result --result-path ./results --dry-activate
 ```
 
-For flora-6.pub.solar:
+After reviewing the changes, apply the update with:
+
 ```
-deploy --targets '.#flora-6' --magic-rollback false --auto-rollback false
+deploy --targets '.#nachtigall' --ssh-user <unix-username> --magic-rollback false --auto-rollback false --keep-result --result-path ./results
+```
+
+For metronom.pub.solar (aarch64-linux):
+
+```
+deploy --targets '.#metronom' --ssh-user <unix-username> --magic-rollback false --auto-rollback false --keep-result --result-path ./results --remote-build
 ```
 
 Usually we skip all rollback functionality, but if you want to deploy a change
@@ -23,10 +38,13 @@ that might lock you out, e.g. to SSH, it might make sense to set these to `true`
 To skip flake checks, e.g. because you already ran them manually before
 deployment, add the flag `--skip-checks` at the end of the command.
 
-`--dry-activate` can be used to only put all files in place without switching,
-to enable switching to the new config quickly at a later moment.
+We use `--keep-result --result-path ./results` to keep the last `result`
+symlink of each `deploy` from being garbage collected. That way, we keep builds
+cached in the Nix store. This is optional and both flags can be removed if disk
+space is a scarce resource on your machine.
 
 You'll need to have SSH Access to the boxes to be able to run `deploy`.
 
 ### Getting SSH access
+
 See [administrative-access.md](./administrative-access.md).

docs/development-shell.md

@@ -1,18 +0,0 @@
-# Getting a development shell
-
-Clone this repository:
-
-```
-git clone https://git.pub.solar/pub-solar/infra.git
-cd infra
-```
-
-then, install [the package manager nix](https://nixos.org/download).
-
-Finally, run:
-
-```
-nix develop
-```
-
-This will install a development shell (devshell) with all required tools.

docs/dns.md

@@ -1,58 +1,61 @@
 # Changing DNS entries
 
 Our current DNS provider is [namecheap](https://www.namecheap.com/).
-We use [Terraform](https://www.terraform.io) to declaratively manage our pub.solar DNS records.
+We use [OpenTofu](https://opentofu.org) to declaratively manage our pub.solar DNS records.
 
 ### Initial setup
 
-Skip this step if you already have a `triton` profile setup.
-
-```
-triton profile create
-```
-
-Please follow https://docs.greenbaum.cloud/en/devops/triton-cli.html for the details.
-
 You will need to setup the following [namecheap API credentials](https://www.namecheap.com/support/api/intro),
 look for "namecheap API key" in the pub.solar Keepass database.
+
 ```
 NAMECHEAP_API_KEY
 NAMECHEAP_API_USER
 NAMECHEAP_USER_NAME
 ```
+
 You will probably also need to add your external IP to the [API allow list](https://ap.www.namecheap.com/settings/tools/apiaccess/whitelisted-ips).
+
 ```
 dig -4 ip @dns.toys
 ```
 
-Now, change into the terraform directory and initialize the terraform providers.
+Now, change into the terraform directory and initialize the terraform providers. To decrypt existing state,
+search for "terraform state passphrase" in the pub.solar Keepass database.
 
 ```
 cd terraform
-export TRITON_KEY_ID=$(cat ~/.config/triton/profiles.d/lev-1-pub_solar.json | jq --raw-output .keyId)
+export TF_VAR_state_passphrase=$(secret-tool lookup pub.solar terraform-state-passphrase-dns)
 
-terraform init
+alias tofu="terraform-backend-git --access-logs --tf tofu git terraform"
+tofu init
 ```
 
 Make your changes, e.g. in `dns.tf`.
+
 ```
 $EDITOR dns.tf
 ```
 
 Plan your changes using:
+
 ```
-terraform plan -out pub-solar-infra.plan
+tofu plan -out pub-solar-infra.plan
 ```
 
 After verification, apply your changes with:
+
 ```
-terraform apply "pub-solar-infra.plan"
+tofu apply "pub-solar-infra.plan"
 ```
 
 ### Useful links
 
-We use the Manta remote backend to save the terraform state for collaboration.
-- https://www.terraform.io/language/v1.2.x/settings/backends/manta
+We use terraform-backend-git remote backend with opentofu state encryption for collaboration.
+
+- https://github.com/plumber-cd/terraform-backend-git
+- https://opentofu.org/docs/language/state/encryption
 
 Namecheap Terraform provider docs:
+
 - https://registry.terraform.io/providers/namecheap/namecheap/latest/docs

docs/drone-ci.md

@@ -1,19 +0,0 @@
-# Drone CI
-
-We currently use two CI systems, [drone CI](https://drone.io), reachable via
-https://ci.pub.solar and [Forgejo Actions](https://forgejo.org/docs/latest/user/actions/),
-which UI is integrated into https://git.pub.solar, for example
-https://git.pub.solar/pub-solar/infra/actions.
-
-### Signing the `.drone.yml` file
-
-Login to https://ci.pub.solar by clicking on the user icon in the bottom left.
-After logging in, you can view your personal API token by clicking on the same
-icon. If you're using the nix [development-shell](./development-shell.md), the
-`drone` command will already be installed.
-
-```
-export DRONE_TOKEN=<your-drone-api-token>
-
-drone --token $DRONE_TOKEN sign --save pub-solar/os
-```

docs/garage.md

@@ -0,0 +1,84 @@
+# Garage
+
+### How-To create a new bucket + keys
+
+Requirements:
+
+- `garage` RPC credentials, in the shared keepass, search for 'garage rpc secret'.
+- [Setup WireGuard](./administrative-access.md#ssh-access) for hosts: `trinkgenossin`, optionally: `delite`, `blue-shell`
+
+```
+ssh <unix-username>@trinkgenossin.wg.pub.solar
+```
+
+```
+# Add a few spaces to avoid leaking the secret to the shell history
+   export GARAGE_RPC_SECRET=<secret-in-keepass>
+```
+
+Now, you can run the following command to check the cluster status:
+
+```
+garage status
+```
+
+Command to list all existing buckets:
+
+```
+garage bucket list
+```
+
+Creating a new bucket and access keys:
+
+```
+garage bucket create <bucket-name>
+garage key create <bucket-name>-key
+garage bucket allow <bucket-name> --read --write --key <bucket-name>-key
+```
+
+Full example for `mastodon` bucket:
+
+```
+garage bucket create mastodon
+
+garage key create mastodon-key
+
+garage bucket allow mastodon --read --write --key mastodon-key
+```
+
+Then [setup your favourite S3 client](https://garagehq.deuxfleurs.fr/documentation/connect/cli/)
+or use the bucket with any [S3 compatible software](https://garagehq.deuxfleurs.fr/documentation/connect/).
+
+Further reading:
+
+- https://garagehq.deuxfleurs.fr/documentation/quick-start/
+- https://garagehq.deuxfleurs.fr/documentation/connect/
+- https://garagehq.deuxfleurs.fr/documentation/connect/apps/#mastodon
+
+### Notes on manual setup steps
+
+```
+ssh <unix-username>@trinkgenossin.wg.pub.solar
+
+# Add a few spaces to avoid leaking the secret to the shell history
+    export GARAGE_RPC_SECRET=<secret-in-keepass>
+
+# Uses the default config /etc/garage.toml
+garage node id
+
+garage node connect <node-id2>
+garage node connect <node-id3>
+
+garage status
+
+#Zones
+#DE-1 DE-2 NL-1
+
+garage layout assign fdaa -z DE-1 -c 800G -t trinkgenossin
+garage layout assign 8835 -z DE-2 -c 800G -t blue-shell
+garage layout assign 73da -z NL-1 -c 800G -t delite
+garage layout show
+garage layout apply --version 1
+```
+
+Source: https://garagehq.deuxfleurs.fr/documentation/cookbook/real-world/#creating-a-cluster-layout

docs/keycloak/delete-unverified-accounts.md

@@ -0,0 +1,79 @@
+# Delete accounts without verified email address
+
+### Keycloak
+
+Required:
+
+- auth.pub.solar admin-cli service user credentials
+- [SSH access to host `nachtigall`](../administrative-access.md#ssh-access)
+
+Run following after SSH'ing to `nachtigall`.
+
+Credentials for the following command are in keepass. Create a keycloak
+config/credentials file at `/tmp/kcadm.config`:
+
+```
+sudo --user keycloak kcadm.sh config credentials \
+  --config /tmp/kcadm.config \
+  --server https://auth.pub.solar \
+  --realm pub.solar \
+  --client admin-cli
+```
+
+Get list of accounts without a verified email address:
+
+```
+sudo --user keycloak kcadm.sh get \
+  --config /tmp/kcadm.config \
+  users \
+  --realm pub.solar \
+  --query emailVerified=false \
+  > /tmp/keycloak-unverified-accounts
+```
+
+Review list of accounts, especially check `createdTimestamp` if any accounts
+were created in the past 2 days. If so, delete those from the
+`/tmp/keycloak-unverified-accounts` file.
+
+```
+createdTimestamps=( $( nix run nixpkgs#jq -- -r '.[].createdTimestamp' < /tmp/keycloak-unverified-accounts ) )
+
+# timestamps are in nanoseconds since epoch, so we need to strip the last three digits
+for timestamp in ${createdTimestamps[@]}; do date --date="@${timestamp::-3}"; done
+
+vim /tmp/keycloak-unverified-accounts
+```
+
+Check how many accounts are going to be deleted:
+
+```
+jq -r '.[].id' < /tmp/keycloak-unverified-accounts | wc -l
+```
+
+```
+jq -r '.[].id' < /tmp/keycloak-unverified-accounts > /tmp/keycloak-unverified-account-ids
+```
+
+Final check before deletion (dry-run):
+
+```
+for id in $(cat /tmp/keycloak-unverified-account-ids)
+  do
+    echo sudo --user keycloak kcadm.sh delete \
+      --config /tmp/kcadm.config \
+      users/$id \
+      --realm pub.solar
+  done
+```
+
+THIS WILL DELETE ACCOUNTS:
+
+```
+for id in $(cat /tmp/keycloak-unverified-account-ids)
+  do
+    sudo --user keycloak kcadm.sh delete \
+      --config /tmp/kcadm.config \
+      users/$id \
+      --realm pub.solar
+  done
+```

docs/keycloak/keycloak-email-list.md

@@ -1,12 +1,15 @@
 # Process for getting a list of email addresses of all keycloak users
 
 ### Keycloak
-Required:
-- auth.pub.solar ops user credentials
-- SSH access to host nachtigall
-```
-ssh barkeeper@nachtigall.pub.solar
 
+Required:
+
+- auth.pub.solar admin-cli service user credentials
+- [SSH access to host `nachtigall`](../administrative-access.md#ssh-access)
+
+Run following after SSH'ing to `nachtigall`:
+
+```
 sudo --user keycloak kcadm.sh get users \
   -r pub.solar \
   --offset 0 \

docs/keycloak/keycloak-reset-user-password.md

@@ -1,15 +1,18 @@
 # Process for resetting keycloak user passwords
 
 ### Keycloak
-Required:
-- auth.pub.solar ops user credentials
-- SSH access to host nachtigall
-```
-ssh barkeeper@nachtigall.pub.solar
 
+Required:
+
+- auth.pub.solar admin-cli service user credentials
+- [SSH access to host `nachtigall`](../administrative-access.md#ssh-access)
+
+Run the following after SSH'ing to `nachtigall`:
+
+```
 mkdir /tmp/keycloak-credential-reset
 
-sudo --user keycloak kcadm.sh config credentials --config /tmp/kcadm.config --server http://localhost:8080 --realm pub.solar --user ops
+sudo --user keycloak kcadm.sh config credentials --config /tmp/kcadm.config --server http://localhost:8080 --realm pub.solar --client admin-cli
 
 sudo --user keycloak kcadm.sh get --config /tmp/kcadm.config users --realm pub.solar | jq --raw-output '.[] | .id' > /tmp/keycloak-credential-reset/all-uuids
 

docs/keycloak/keycloak-update-realm.md

@@ -1,12 +1,15 @@
 # Process for updating a keycloak realm via CLI
 
 ### Keycloak
-Required:
-- auth.pub.solar ops user credentials
-- SSH access to host nachtigall
-```
-ssh barkeeper@nachtigall.pub.solar
 
+Required:
+
+- auth.pub.solar admin-cli service user credentials
+- [SSH access to host `nachtigall`](../administrative-access.md#ssh-access)
+
+Run the following after SSH'ing to `nachtigall`:
+
+```
 sudo -u keycloak kcadm.sh config credentials --config /tmp/kcadm.config --server http://localhost:8080 --realm master --user admin
 
 sudo -u keycloak kcadm.sh get --config /tmp/kcadm.config realms/pub.solar

docs/mail.md

@@ -0,0 +1,4 @@
+### Mail
+
+mail.pub.solar aka metronom.pub.solar hosts our internal mails.
+This is a small Hetzner cloud instance on https://console.hetzner.cloud.

docs/mediawiki-updates.md

@@ -4,28 +4,27 @@ See the [mediawiki-oidc-docker repository](https://git.pub.solar/pub-solar/media
 for instructions on updating our customized mediawiki docker image.
 
 To deploy a new docker image to `nachtigall`, first bump the mediawiki version
-of the docker image tag in `hosts/nachtigall/apps/mediawiki.nix` (search for
+of the docker image tag in `modules/mediawiki/default.nix` (search for
 `image`).
 
 Next, push your changes to https://git.pub.solar and get them reviewed and
 approved.
 
 After approval, create a fresh backup of the database and deploy the changes to
-`nachtigall`:
+`nachtigall`. Run the following after [SSH'ing to `nachtigall`](./administrative-access.md#ssh-access):
 
 ```
-ssh barkeeper@nachtigall.pub.solar
 sudo -u postgres pg_dump --create -Fc mediawiki > mediawiki-db-$(date +%F).dump
 exit
 ```
 
 ```
-deploy --targets '.#nachtigall'
+deploy --targets '.#nachtigall' --magic-rollback false --auto-rollback false --keep-result --result-path ./results
 ```
 
-Then, finalize the update by running the database migration script:
+Then, finalize the update by running the database migration script (in a [SSH](./administrative-access.md#ssh-access) shell on `nachtigall`):
+
 ```
-ssh barkeeper@nachtigall.pub.solar
 docker exec -it mediawiki bash
 php maintenance/run.php update.php
 ```

docs/nextcloud.md

@@ -0,0 +1,19 @@
+# Nextcloud debugging
+
+Set loglevel to `0` for debug logs:
+
+```nix
+services.nextcloud.settings.loglevel = 0;
+```
+
+Then, logs appear in the `phpfpm-nextcloud.service` logs:
+
+```bash
+sudo journalctl -fu phpfpm-nextcloud
+```
+
+Make sure to set the loglevel back to the default `2` warning after debugging:
+
+```nix
+services.nextcloud.settings.loglevel = 2;
+```

docs/nix-flake-updates.md

@@ -41,3 +41,7 @@ wrapped-ruby-mastodon-gems: 4.2.1 → 4.2.3
 zfs-kernel: 2.2.1-6.1.64 → 2.2.2-6.1.66
 zfs-user: 2.2.1 → 2.2.2
 ```
+
+### Deploying updates
+
+See [deploying.md](./deploying.md).

docs/nixos-anywhere.md

@@ -0,0 +1,13 @@
+```
+curl -L https://github.com/nix-community/nixos-images/releases/download/nixos-unstable/nixos-kexec-installer-noninteractive-x86_64-linux.tar.gz | tar -xzf- -C /root
+/root/kexec/run
+```
+
+```
+mkdir -p /etc/secrets/initrd
+ssh-keygen -t ed25519 -f /etc/secrets/initrd/ssh_host_ed25519_key
+```
+
+```
+nix run github:nix-community/nixos-anywhere -- --flake .#blue-shell root@194.13.83.205
+```

docs/obs-portal.md

@@ -0,0 +1,32 @@
+# OpenBikeSensor Portal
+
+## Docker Containers
+
+- portal
+- worker
+- db
+
+## Run database migrations
+
+After an upgrade it is sometimes necessary to run database migrations or regenerate tiles.
+
+```
+docker exec -ti obs-portal tools/upgrade.py
+```
+
+## Dump database
+
+Save database dump to `dump.sql` in the current working directory.
+
+```
+docker exec -ti --user postgres obs-portal-db pg_dump obs > dump.sql
+```
+
+## Restore database
+
+Load database dump from `dump.sql` file.
+`obs` database needs to exist before importing the dump.
+
+```
+cat dump.sql | docker exec -ti --user postgres obs-portal-db psql obs
+```

docs/reverting-version.md

@@ -1,3 +1 @@
 # Reverting to an old version
-
-

docs/unlocking-root.md

@@ -1,9 +0,0 @@
-# Unlocking the root partition on boot
-
-After a boot, the encrypted root partition will have to be unlocked. This is done by accessing the server via SSH with user root on port 2222.
-
-```
-ssh root@nachtigall.pub.solar -p2222
-```
-
- After connecting, paste the crypt passphrase you can find in the shared keepass. This will disconnect the SSH session right away and the server will keep booting into stage 2.

docs/unlocking-zfs-pool.md

@@ -0,0 +1,20 @@
+# Unlocking the ZFS pool on boot
+
+After a reboot, the encrypted ZFS pool will have to be unlocked. This is done by
+accessing the server via SSH as user `root` on port 2222.
+
+Nachtigall:
+
+```
+ssh -4 root@nachtigall.pub.solar -p2222
+```
+
+Metronom:
+
+```
+ssh -4 root@metronom.pub.solar -p2222
+```
+
+After connecting, paste the encryption passphrase you can find in the shared
+keepass. This will disconnect the SSH session immediately and the server will
+continue to boot into stage 2.

flake.lock

@@ -14,11 +14,11 @@
         "systems": "systems"
       },
       "locked": {
-        "lastModified": 1712079060,
-        "narHash": "sha256-/JdiT9t+zzjChc5qQiF+jhrVhRt8figYH29rZO7pFe4=",
+        "lastModified": 1723293904,
+        "narHash": "sha256-b+uqzj+Wa6xgMS9aNbX4I+sXeb5biPDi39VgvSFqFvU=",
         "owner": "ryantm",
         "repo": "agenix",
-        "rev": "1381a759b205dff7a6818733118d02253340fd5e",
+        "rev": "f6291c5935fdc4e0bef208cfc0dcab7e3f7a1c41",
         "type": "github"
       },
       "original": {
@@ -27,6 +27,22 @@
         "type": "github"
       }
     },
+    "blobs": {
+      "flake": false,
+      "locked": {
+        "lastModified": 1604995301,
+        "narHash": "sha256-wcLzgLec6SGJA8fx1OEN1yV/Py5b+U5iyYpksUY/yLw=",
+        "owner": "simple-nixos-mailserver",
+        "repo": "blobs",
+        "rev": "2cccdf1ca48316f2cfd1c9a0017e8de5a7156265",
+        "type": "gitlab"
+      },
+      "original": {
+        "owner": "simple-nixos-mailserver",
+        "repo": "blobs",
+        "type": "gitlab"
+      }
+    },
     "deploy-rs": {
       "inputs": {
         "flake-compat": "flake-compat",
@@ -36,11 +52,11 @@
         "utils": "utils"
       },
       "locked": {
-        "lastModified": 1711973905,
-        "narHash": "sha256-UFKME/N1pbUtn+2Aqnk+agUt8CekbpuqwzljivfIme8=",
+        "lastModified": 1727447169,
+        "narHash": "sha256-3KyjMPUKHkiWhwR91J1YchF6zb6gvckCAY1jOE+ne0U=",
         "owner": "serokell",
         "repo": "deploy-rs",
-        "rev": "88b3059b020da69cbe16526b8d639bd5e0b51c8b",
+        "rev": "aa07eb05537d4cd025e2310397a6adcedfe72c76",
         "type": "github"
       },
       "original": {
@@ -71,14 +87,58 @@
         "type": "github"
       }
     },
+    "disko": {
+      "inputs": {
+        "nixpkgs": [
+          "nixpkgs"
+        ]
+      },
+      "locked": {
+        "lastModified": 1734343412,
+        "narHash": "sha256-b7G8oFp0Nj01BYUJ6ENC9Qf/HsYAIZvN9k/p0Kg/PFU=",
+        "owner": "nix-community",
+        "repo": "disko",
+        "rev": "a08bfe06b39e94eec98dd089a2c1b18af01fef19",
+        "type": "github"
+      },
+      "original": {
+        "owner": "nix-community",
+        "repo": "disko",
+        "type": "github"
+      }
+    },
+    "element-stickers": {
+      "inputs": {
+        "maunium-stickerpicker": [
+          "maunium-stickerpicker"
+        ],
+        "nixpkgs": [
+          "nixpkgs"
+        ]
+      },
+      "locked": {
+        "lastModified": 1714430716,
+        "narHash": "sha256-+WmgGbONe5u2wpvkUC5wNhYnrE6eziIv3Liq4pv7jro=",
+        "ref": "main",
+        "rev": "85716a9e30fb6fae47336ed0cae3d1425c80f17c",
+        "revCount": 6,
+        "type": "git",
+        "url": "https://git.pub.solar/pub-solar/maunium-stickerpicker-nix"
+      },
+      "original": {
+        "ref": "main",
+        "type": "git",
+        "url": "https://git.pub.solar/pub-solar/maunium-stickerpicker-nix"
+      }
+    },
     "element-themes": {
       "flake": false,
       "locked": {
-        "lastModified": 1707755689,
-        "narHash": "sha256-pMwrpZwLp7tw0nBbz/ENVJ2LoN9jIxEfjcq7OXoiKEw=",
+        "lastModified": 1718859621,
+        "narHash": "sha256-ZOOm6UFGNSkGrdwbG5saLAYgAPYJ7E80ogA40CaW+E4=",
         "owner": "aaronraimist",
         "repo": "element-themes",
-        "rev": "2368b58c16d2c4aabb82a245f036d228cbb6e5f5",
+        "rev": "3bc82abc3dd468dabc933f0f9d0b443ed97554a6",
         "type": "github"
       },
       "original": {
@@ -104,16 +164,32 @@
         "type": "github"
       }
     },
+    "flake-compat_2": {
+      "flake": false,
+      "locked": {
+        "lastModified": 1696426674,
+        "narHash": "sha256-kvjfFW7WAETZlt09AgDn1MrtKzP7t90Vf7vypd3OL1U=",
+        "owner": "edolstra",
+        "repo": "flake-compat",
+        "rev": "0f9255e01c2351cc7d116c072cb317785dd33b33",
+        "type": "github"
+      },
+      "original": {
+        "owner": "edolstra",
+        "repo": "flake-compat",
+        "type": "github"
+      }
+    },
     "flake-parts": {
       "inputs": {
         "nixpkgs-lib": "nixpkgs-lib"
       },
       "locked": {
-        "lastModified": 1712014858,
-        "narHash": "sha256-sB4SWl2lX95bExY2gMFG5HIzvva5AVMJd4Igm+GpZNw=",
+        "lastModified": 1733312601,
+        "narHash": "sha256-4pDvzqnegAfRkPwO3wmwBhVi/Sye1mzps0zHWYnP88c=",
         "owner": "hercules-ci",
         "repo": "flake-parts",
-        "rev": "9126214d0a59633752a136528f5f3b9aa8565b7d",
+        "rev": "205b12d8b7cd4802fbcb8e8ef6a0f1408781a4f9",
         "type": "github"
       },
       "original": {
@@ -158,18 +234,19 @@
         "type": "github"
       }
     },
-    "flake-utils_3": {
+    "fork": {
       "locked": {
-        "lastModified": 1653893745,
-        "narHash": "sha256-0jntwV3Z8//YwuOjzhV2sgJJPt+HY6KhU7VZUL0fKZQ=",
-        "owner": "numtide",
-        "repo": "flake-utils",
-        "rev": "1ed9fb1935d260de5fe1c2f7ee0ebaae17ed2fa1",
+        "lastModified": 1729963002,
+        "narHash": "sha256-2zrYfd/qdfExU5zVwvH80uJnKc/dMeK6zp3O1UtW2Mo=",
+        "owner": "teutat3s",
+        "repo": "nixpkgs",
+        "rev": "005faaacbeede0296dec5c844f508027ab8a3ff6",
         "type": "github"
       },
       "original": {
-        "owner": "numtide",
-        "repo": "flake-utils",
+        "owner": "teutat3s",
+        "ref": "init-matrix-authentication-service-module",
+        "repo": "nixpkgs",
         "type": "github"
       }
     },
@@ -180,16 +257,16 @@
         ]
       },
       "locked": {
-        "lastModified": 1714043624,
-        "narHash": "sha256-Xn2r0Jv95TswvPlvamCC46wwNo8ALjRCMBJbGykdhcM=",
+        "lastModified": 1726989464,
+        "narHash": "sha256-Vl+WVTJwutXkimwGprnEtXc/s/s8sMuXzqXaspIGlwM=",
         "owner": "nix-community",
         "repo": "home-manager",
-        "rev": "86853e31dc1b62c6eeed11c667e8cdd0285d4411",
+        "rev": "2f23fa308a7c067e52dfcc30a0758f47043ec176",
         "type": "github"
       },
       "original": {
         "owner": "nix-community",
-        "ref": "release-23.11",
+        "ref": "release-24.05",
         "repo": "home-manager",
         "type": "github"
       }
@@ -203,11 +280,11 @@
         ]
       },
       "locked": {
-        "lastModified": 1707424749,
-        "narHash": "sha256-eTvts5E3zmD4/DoAI9KedQjRwica0cg36wwIVp1NWbM=",
+        "lastModified": 1731518114,
+        "narHash": "sha256-h9Wb3VjmXBZwTO3prRweUKwp2H9hZHCQKrkbU+2WPQs=",
         "ref": "main",
-        "rev": "1202a23c205b3c07a5feb5caf6813f21b3c69307",
-        "revCount": 30,
+        "rev": "060ecccc5f8c92a0705ab91ff047811efd559468",
+        "revCount": 36,
         "type": "git",
         "url": "https://git.pub.solar/pub-solar/keycloak-theme"
       },
@@ -217,6 +294,25 @@
         "url": "https://git.pub.solar/pub-solar/keycloak-theme"
       }
     },
+    "maunium-stickerpicker": {
+      "flake": false,
+      "locked": {
+        "dir": "web",
+        "lastModified": 1733177811,
+        "narHash": "sha256-1n7bPSCRw7keTCIu4tJGnUlkoId6H1+dPsTPzKo3Rrk=",
+        "owner": "maunium",
+        "repo": "stickerpicker",
+        "rev": "89d3aece041c85ebe5a1ad4e620388af5227cbb0",
+        "type": "github"
+      },
+      "original": {
+        "dir": "web",
+        "owner": "maunium",
+        "ref": "master",
+        "repo": "stickerpicker",
+        "type": "github"
+      }
+    },
     "nix-darwin": {
       "inputs": {
         "nixpkgs": [
@@ -224,11 +320,11 @@
         ]
       },
       "locked": {
-        "lastModified": 1713946171,
-        "narHash": "sha256-lc75rgRQLdp4Dzogv5cfqOg6qYc5Rp83oedF2t0kDp8=",
+        "lastModified": 1733570843,
+        "narHash": "sha256-sQJAxY1TYWD1UyibN/FnN97paTFuwBw3Vp3DNCyKsMk=",
         "owner": "lnl7",
         "repo": "nix-darwin",
-        "rev": "230a197063de9287128e2c68a7a4b0cd7d0b50a7",
+        "rev": "a35b08d09efda83625bef267eb24347b446c80b8",
         "type": "github"
       },
       "original": {
@@ -238,87 +334,79 @@
         "type": "github"
       }
     },
-    "nixos-flake": {
-      "locked": {
-        "lastModified": 1711376798,
-        "narHash": "sha256-37wawZGSX/dD1rn7TwFJhUdpozC2VPEQXetpfpK/D+w=",
-        "owner": "srid",
-        "repo": "nixos-flake",
-        "rev": "7b19503e7f8c7cc0884fc2fbd669c0cc2e05aef5",
-        "type": "github"
-      },
-      "original": {
-        "owner": "srid",
-        "repo": "nixos-flake",
-        "type": "github"
-      }
-    },
     "nixpkgs": {
       "locked": {
-        "lastModified": 1713995372,
-        "narHash": "sha256-fFE3M0vCoiSwCX02z8VF58jXFRj9enYUSTqjyHAjrds=",
+        "lastModified": 1734202038,
+        "narHash": "sha256-LwcGIkORU8zfQ/8jAgptgPY8Zf9lGKB0vtNdQyEkaN8=",
         "owner": "nixos",
         "repo": "nixpkgs",
-        "rev": "dd37924974b9202f8226ed5d74a252a9785aedf8",
+        "rev": "bcba2fbf6963bf6bed3a749f9f4cf5bff4adb96d",
         "type": "github"
       },
       "original": {
         "owner": "nixos",
-        "ref": "nixos-23.11",
-        "repo": "nixpkgs",
-        "type": "github"
-      }
-    },
-    "nixpkgs-2205": {
-      "locked": {
-        "lastModified": 1685573264,
-        "narHash": "sha256-Zffu01pONhs/pqH07cjlF10NnMDLok8ix5Uk4rhOnZQ=",
-        "owner": "nixos",
-        "repo": "nixpkgs",
-        "rev": "380be19fbd2d9079f677978361792cb25e8a3635",
-        "type": "github"
-      },
-      "original": {
-        "owner": "nixos",
-        "ref": "nixos-22.05",
+        "ref": "nixos-24.05",
         "repo": "nixpkgs",
         "type": "github"
       }
     },
     "nixpkgs-lib": {
       "locked": {
-        "dir": "lib",
-        "lastModified": 1711703276,
-        "narHash": "sha256-iMUFArF0WCatKK6RzfUJknjem0H9m4KgorO/p3Dopkk=",
-        "owner": "NixOS",
-        "repo": "nixpkgs",
-        "rev": "d8fe5e6c92d0d190646fb9f1056741a229980089",
-        "type": "github"
+        "lastModified": 1733096140,
+        "narHash": "sha256-1qRH7uAUsyQI7R1Uwl4T+XvdNv778H0Nb5njNrqvylY=",
+        "type": "tarball",
+        "url": "https://github.com/NixOS/nixpkgs/archive/5487e69da40cbd611ab2cadee0b4637225f7cfae.tar.gz"
       },
       "original": {
-        "dir": "lib",
-        "owner": "NixOS",
-        "ref": "nixos-unstable",
-        "repo": "nixpkgs",
-        "type": "github"
+        "type": "tarball",
+        "url": "https://github.com/NixOS/nixpkgs/archive/5487e69da40cbd611ab2cadee0b4637225f7cfae.tar.gz"
       }
     },
     "root": {
       "inputs": {
         "agenix": "agenix",
         "deploy-rs": "deploy-rs",
+        "disko": "disko",
+        "element-stickers": "element-stickers",
         "element-themes": "element-themes",
         "flake-parts": "flake-parts",
+        "fork": "fork",
         "home-manager": "home-manager",
         "keycloak-theme-pub-solar": "keycloak-theme-pub-solar",
+        "maunium-stickerpicker": "maunium-stickerpicker",
         "nix-darwin": "nix-darwin",
-        "nixos-flake": "nixos-flake",
         "nixpkgs": "nixpkgs",
-        "nixpkgs-2205": "nixpkgs-2205",
-        "triton-vmtools": "triton-vmtools",
+        "simple-nixos-mailserver": "simple-nixos-mailserver",
         "unstable": "unstable"
       }
     },
+    "simple-nixos-mailserver": {
+      "inputs": {
+        "blobs": "blobs",
+        "flake-compat": "flake-compat_2",
+        "nixpkgs": [
+          "unstable"
+        ],
+        "nixpkgs-24_05": [
+          "nixpkgs"
+        ],
+        "utils": "utils_2"
+      },
+      "locked": {
+        "lastModified": 1718084203,
+        "narHash": "sha256-Cx1xoVfSMv1XDLgKg08CUd1EoTYWB45VmB9XIQzhmzI=",
+        "owner": "simple-nixos-mailserver",
+        "repo": "nixos-mailserver",
+        "rev": "29916981e7b3b5782dc5085ad18490113f8ff63b",
+        "type": "gitlab"
+      },
+      "original": {
+        "owner": "simple-nixos-mailserver",
+        "ref": "nixos-24.05",
+        "repo": "nixos-mailserver",
+        "type": "gitlab"
+      }
+    },
     "systems": {
       "locked": {
         "lastModified": 1681028828,
@@ -379,37 +467,28 @@
         "type": "github"
       }
     },
-    "triton-vmtools": {
-      "inputs": {
-        "flake-utils": "flake-utils_3",
-        "nixpkgs": [
-          "nixpkgs"
-        ]
-      },
+    "systems_5": {
       "locked": {
-        "dir": "vmtools",
-        "lastModified": 1698443513,
-        "narHash": "sha256-wX2JIJ3JmJn6MAurdyjwZU+FZjLCwBArMrVSeeCb/ZU=",
-        "ref": "main",
-        "rev": "0d039dcf06afb8cbddd7ac54bae4d0d185f3e88e",
-        "revCount": 85,
-        "type": "git",
-        "url": "https://git.pub.solar/pub-solar/infra-vintage?dir=vmtools"
+        "lastModified": 1681028828,
+        "narHash": "sha256-Vy1rq5AaRuLzOxct8nz4T6wlgyUR7zLU309k9mBC768=",
+        "owner": "nix-systems",
+        "repo": "default",
+        "rev": "da67096a3b9bf56a91d16901293e51ba5b49a27e",
+        "type": "github"
       },
       "original": {
-        "dir": "vmtools",
-        "ref": "main",
-        "type": "git",
-        "url": "https://git.pub.solar/pub-solar/infra-vintage?dir=vmtools"
+        "owner": "nix-systems",
+        "repo": "default",
+        "type": "github"
       }
     },
     "unstable": {
       "locked": {
-        "lastModified": 1713895582,
-        "narHash": "sha256-cfh1hi+6muQMbi9acOlju3V1gl8BEaZBXBR9jQfQi4U=",
+        "lastModified": 1734119587,
+        "narHash": "sha256-AKU6qqskl0yf2+JdRdD0cfxX4b9x3KKV5RqA6wijmPM=",
         "owner": "nixos",
         "repo": "nixpkgs",
-        "rev": "572af610f6151fd41c212f897c71f7056e3fb518",
+        "rev": "3566ab7246670a43abd2ffa913cc62dad9cdf7d5",
         "type": "github"
       },
       "original": {
@@ -436,6 +515,24 @@
         "repo": "flake-utils",
         "type": "github"
       }
+    },
+    "utils_2": {
+      "inputs": {
+        "systems": "systems_5"
+      },
+      "locked": {
+        "lastModified": 1709126324,
+        "narHash": "sha256-q6EQdSeUZOG26WelxqkmR7kArjgWCdw5sfJVHPH/7j8=",
+        "owner": "numtide",
+        "repo": "flake-utils",
+        "rev": "d465f4819400de7c8d874d50b982301f28a84605",
+        "type": "github"
+      },
+      "original": {
+        "owner": "numtide",
+        "repo": "flake-utils",
+        "type": "github"
+      }
     }
   },
   "root": "root",

flake.nix

@@ -1,23 +1,24 @@
 {
   inputs = {
     # Track channels with commits tested and built by hydra
-    nixpkgs.url = "github:nixos/nixpkgs/nixos-23.11";
+    nixpkgs.url = "github:nixos/nixpkgs/nixos-24.05";
     unstable.url = "github:nixos/nixpkgs/nixos-unstable";
-
-    nixpkgs-2205.url = "github:nixos/nixpkgs/nixos-22.05";
+    fork.url = "github:teutat3s/nixpkgs/init-matrix-authentication-service-module";
 
     nix-darwin.url = "github:lnl7/nix-darwin/master";
     nix-darwin.inputs.nixpkgs.follows = "nixpkgs";
 
-    home-manager.url = "github:nix-community/home-manager/release-23.11";
+    home-manager.url = "github:nix-community/home-manager/release-24.05";
     home-manager.inputs.nixpkgs.follows = "nixpkgs";
 
     flake-parts.url = "github:hercules-ci/flake-parts";
-    nixos-flake.url = "github:srid/nixos-flake";
 
     deploy-rs.url = "github:serokell/deploy-rs";
     deploy-rs.inputs.nixpkgs.follows = "nixpkgs";
 
+    disko.url = "github:nix-community/disko";
+    disko.inputs.nixpkgs.follows = "nixpkgs";
+
     agenix.url = "github:ryantm/agenix";
     agenix.inputs.nixpkgs.follows = "nixpkgs";
     agenix.inputs.darwin.follows = "nix-darwin";
@@ -26,77 +27,136 @@
     keycloak-theme-pub-solar.url = "git+https://git.pub.solar/pub-solar/keycloak-theme?ref=main";
     keycloak-theme-pub-solar.inputs.nixpkgs.follows = "nixpkgs";
 
-    triton-vmtools.url = "git+https://git.pub.solar/pub-solar/infra-vintage?ref=main&dir=vmtools";
-    triton-vmtools.inputs.nixpkgs.follows = "nixpkgs";
-
     element-themes.url = "github:aaronraimist/element-themes/master";
     element-themes.flake = false;
+
+    maunium-stickerpicker.url = "github:maunium/stickerpicker?ref=master&dir=web";
+    maunium-stickerpicker.flake = false;
+
+    element-stickers.url = "git+https://git.pub.solar/pub-solar/maunium-stickerpicker-nix?ref=main";
+    element-stickers.inputs.maunium-stickerpicker.follows = "maunium-stickerpicker";
+    element-stickers.inputs.nixpkgs.follows = "nixpkgs";
+
+    simple-nixos-mailserver.url = "gitlab:simple-nixos-mailserver/nixos-mailserver/nixos-24.05";
+    simple-nixos-mailserver.inputs.nixpkgs-24_05.follows = "nixpkgs";
+    simple-nixos-mailserver.inputs.nixpkgs.follows = "unstable";
   };
 
-  outputs = inputs@{ self, ... }:
+  outputs =
+    inputs@{ self, ... }:
     inputs.flake-parts.lib.mkFlake { inherit inputs; } {
-      systems = [ "x86_64-linux" "aarch64-linux" ];
+      systems = [
+        "x86_64-linux"
+        "aarch64-linux"
+      ];
 
       imports = [
-        inputs.nixos-flake.flakeModule
         ./logins
         ./lib
         ./overlays
-        ./modules
         ./hosts
       ];
 
-      perSystem = { system, pkgs, config, ... }: {
-        _module.args = {
-          inherit inputs;
-          pkgs = import inputs.nixpkgs {
-            inherit system;
-            overlays = [
-              inputs.agenix.overlays.default
+      perSystem =
+        {
+          system,
+          pkgs,
+          config,
+          lib,
+          ...
+        }:
+        {
+          _module.args = {
+            inherit inputs;
+            pkgs = import inputs.nixpkgs {
+              inherit system;
+              overlays = [ inputs.agenix.overlays.default ];
+            };
+            unstable = import inputs.unstable { inherit system; };
+            master = import inputs.master { inherit system; };
+          };
+
+          checks =
+            let
+              nixos-lib = import (inputs.nixpkgs + "/nixos/lib") { };
+              testDir = builtins.attrNames (builtins.readDir ./tests);
+              testFiles = builtins.filter (n: builtins.match "^.*.nix$" n != null) testDir;
+            in
+            builtins.listToAttrs (
+              map (x: {
+                name = "test-${lib.strings.removeSuffix ".nix" x}";
+                value = nixos-lib.runTest (
+                  import (./tests + "/${x}") {
+                    inherit self;
+                    inherit pkgs;
+                    inherit lib;
+                    inherit config;
+                  }
+                );
+              }) testFiles
+            );
+
+          devShells.default = pkgs.mkShell {
+            buildInputs = with pkgs; [
+              deploy-rs
+              nixpkgs-fmt
+              agenix
+              age-plugin-yubikey
+              cachix
+              editorconfig-checker
+              nodePackages.prettier
+              nvfetcher
+              shellcheck
+              shfmt
+              inputs.unstable.legacyPackages.${system}.treefmt2
+              nixos-generators
+              inputs.unstable.legacyPackages.${system}.opentofu
+              terraform-backend-git
+              terraform-ls
+              jq
             ];
           };
-          unstable = import inputs.unstable { inherit system; };
-          master = import inputs.master { inherit system; };
+
+          devShells.ci = pkgs.mkShell { buildInputs = with pkgs; [ nodejs ]; };
         };
-        devShells.default = pkgs.mkShell {
-          buildInputs = with pkgs; [
-            deploy-rs
-            nixpkgs-fmt
-            agenix
-            age-plugin-yubikey
-            cachix
-            editorconfig-checker
-            nodePackages.prettier
-            nvfetcher
-            shellcheck
-            shfmt
-            treefmt
-            nixos-generators
-            inputs.nixpkgs-2205.legacyPackages.${system}.terraform
-            jq
-          ];
-        };
-      };
 
-      flake =
-        let
-          username = "barkeeper";
-        in
-        {
-          inherit username;
+      flake = {
+        nixosModules = builtins.listToAttrs (
+          map (x: {
+            name = x;
+            value = import (./modules + "/${x}");
+          }) (builtins.attrNames (builtins.readDir ./modules))
+        );
 
-          checks = builtins.mapAttrs (system: deployLib: deployLib.deployChecks self.deploy) inputs.deploy-rs.lib;
+        checks = builtins.mapAttrs (
+          system: deployLib: deployLib.deployChecks self.deploy
+        ) inputs.deploy-rs.lib;
 
-          deploy.nodes = self.lib.deploy.mkDeployNodes self.nixosConfigurations {
-            nachtigall = {
-              hostname = "10.7.6.1";
-              sshUser = username;
-            };
-            flora-6 = {
-              hostname = "10.7.6.2";
-              sshUser = username;
-            };
+        formatter."x86_64-linux" = inputs.unstable.legacyPackages."x86_64-linux".nixfmt-rfc-style;
+
+        deploy.nodes = self.lib.deploy.mkDeployNodes self.nixosConfigurations {
+          nachtigall = {
+            hostname = "nachtigall.wg.pub.solar";
+          };
+          metronom = {
+            hostname = "metronom.wg.pub.solar";
+          };
+          tankstelle = {
+            hostname = "tankstelle.wg.pub.solar";
+          };
+          underground = {
+            hostname = "80.244.242.3";
+          };
+          trinkgenossin = {
+            hostname = "trinkgenossin.wg.pub.solar";
+          };
+          delite = {
+            hostname = "delite.wg.pub.solar";
+          };
+          blue-shell = {
+            hostname = "blue-shell.wg.pub.solar";
           };
         };
+      };
     };
 }

hosts/blue-shell/configuration.nix

@@ -0,0 +1,33 @@
+{
+  config,
+  lib,
+  pkgs,
+  ...
+}:
+{
+  boot.loader.grub.enable = true;
+
+  boot.kernelParams = [
+    "boot.shell_on_fail=1"
+    "ip=dhcp"
+  ];
+
+  # This option defines the first version of NixOS you have installed on this particular machine,
+  # and is used to maintain compatibility with application data (e.g. databases) created on older NixOS versions.
+  #
+  # Most users should NEVER change this value after the initial install, for any reason,
+  # even if you've upgraded your system to a new NixOS release.
+  #
+  # This value does NOT affect the Nixpkgs version your packages and OS are pulled from,
+  # so changing it will NOT upgrade your system - see https://nixos.org/manual/nixos/stable/#sec-upgrading for how
+  # to actually do that.
+  #
+  # This value being lower than the current NixOS release does NOT mean your system is
+  # out of date, out of support, or vulnerable.
+  #
+  # Do NOT change this value unless you have manually inspected all the changes it would make to your configuration,
+  # and migrated your data accordingly.
+  #
+  # For more information, see `man configuration.nix` or https://nixos.org/manual/nixos/stable/options#opt-system.stateVersion .
+  system.stateVersion = "24.05"; # Did you read the comment?
+}

hosts/blue-shell/default.nix

@@ -0,0 +1,13 @@
+{ flake, ... }:
+
+{
+  imports = [
+    ./hardware-configuration.nix
+    ./configuration.nix
+    ./disk-config.nix
+
+    ./networking.nix
+    ./wireguard.nix
+    #./backups.nix
+  ];
+}

hosts/blue-shell/disk-config.nix

@@ -0,0 +1,101 @@
+{
+  disko.devices = {
+    disk = {
+      main = {
+        type = "disk";
+        device = "/dev/vdb";
+        content = {
+          type = "gpt";
+          partitions = {
+            bios = {
+              size = "1M";
+              type = "EF02"; # for grub MBR
+            };
+            boot = {
+              size = "1G";
+              type = "8300";
+              content = {
+                type = "filesystem";
+                format = "ext4";
+                mountpoint = "/boot";
+                mountOptions = [ "defaults" ];
+              };
+            };
+            luks = {
+              size = "100%";
+              content = {
+                type = "luks";
+                name = "cryptroot";
+                extraOpenArgs = [ ];
+                # if you want to use the key for interactive login be sure there is no trailing newline
+                # for example use `echo -n "password" > /tmp/secret.key`
+                passwordFile = "/tmp/luks-password";
+                content = {
+                  type = "lvm_pv";
+                  vg = "vg0";
+                };
+              };
+            };
+          };
+        };
+      };
+      data = {
+        type = "disk";
+        device = "/dev/vdc";
+        content = {
+          type = "gpt";
+          partitions = {
+            luks = {
+              size = "100%";
+              content = {
+                type = "luks";
+                name = "cryptdata";
+                extraOpenArgs = [ ];
+                # if you want to use the key for interactive login be sure there is no trailing newline
+                # for example use `echo -n "password" > /tmp/secret.key`
+                passwordFile = "/tmp/luks-password";
+                content = {
+                  type = "filesystem";
+                  format = "xfs";
+                  mountpoint = "/var/lib/garage/data";
+                  mountOptions = [ "defaults" ];
+                };
+              };
+            };
+          };
+        };
+      };
+    };
+    lvm_vg = {
+      vg0 = {
+        type = "lvm_vg";
+        lvs = {
+          root = {
+            size = "100G";
+            content = {
+              type = "filesystem";
+              format = "ext4";
+              mountpoint = "/";
+              mountOptions = [ "defaults" ];
+            };
+          };
+          swap = {
+            size = "16G";
+            content = {
+              type = "swap";
+            };
+          };
+          metadata = {
+            size = "50G";
+            content = {
+              type = "filesystem";
+              format = "btrfs";
+              mountpoint = "/var/lib/garage/meta";
+              mountOptions = [ "defaults" ];
+            };
+          };
+        };
+      };
+    };
+  };
+}

hosts/blue-shell/hardware-configuration.nix

@@ -0,0 +1,27 @@
+# Do not modify this file!  It was generated by ‘nixos-generate-config’
+# and may be overwritten by future invocations.  Please make changes
+# to /etc/nixos/configuration.nix instead.
+{
+  config,
+  lib,
+  pkgs,
+  modulesPath,
+  ...
+}:
+
+{
+  imports = [ (modulesPath + "/profiles/qemu-guest.nix") ];
+
+  boot.initrd.availableKernelModules = [
+    "ata_piix"
+    "uhci_hcd"
+    "virtio_pci"
+    "sr_mod"
+    "virtio_blk"
+  ];
+  boot.initrd.kernelModules = [ ];
+  boot.kernelModules = [ ];
+  boot.extraModulePackages = [ ];
+
+  nixpkgs.hostPlatform = lib.mkDefault "x86_64-linux";
+}

hosts/blue-shell/networking.nix

@@ -0,0 +1,26 @@
+{
+  config,
+  pkgs,
+  flake,
+  ...
+}:
+{
+  services.garage.settings.rpc_public_addr = "[2a03:4000:43:24e::1]:3901";
+
+  networking.hostName = "blue-shell";
+  networking.hostId = "00000005";
+
+  networking.useDHCP = false;
+  systemd.network.enable = true;
+  systemd.network.networks."10-wan" = {
+    matchConfig.Name = "ens3";
+    address = [
+      "194.13.83.205/22"
+      "2a03:4000:43:24e::1/64"
+    ];
+    gateway = [
+      "194.13.80.1"
+      "fe80::1"
+    ];
+  };
+}

hosts/blue-shell/wireguard.nix

@@ -0,0 +1,51 @@
+{
+  config,
+  pkgs,
+  flake,
+  ...
+}:
+let
+  wireguardIPv4 = "10.7.6.7";
+  wireguardIPv6 = "fd00:fae:fae:fae:fae:7::";
+in
+{
+  networking.firewall.allowedUDPPorts = [ 51820 ];
+
+  age.secrets.wg-private-key.file = "${flake.self}/secrets/blue-shell-wg-private-key.age";
+
+  networking.wireguard.interfaces = {
+    wg-ssh = {
+      listenPort = 51820;
+      mtu = 1300;
+      ips = [
+        "${wireguardIPv4}/32"
+        "${wireguardIPv6}/96"
+      ];
+      privateKeyFile = config.age.secrets.wg-private-key.path;
+      peers = flake.self.logins.wireguardDevices ++ [
+        {
+          # trinkgenossin.pub.solar
+          publicKey = "QWgHovHxtqiQhnHLouSWiT6GIoQDmuvnThYL5c/rvU4=";
+          allowedIPs = [
+            "10.7.6.5/32"
+            "fd00:fae:fae:fae:fae:5::/96"
+          ];
+          #endpoint = "85.215.152.22:51820";
+          endpoint = "[2a01:239:35d:f500::1]:51820";
+          persistentKeepalive = 15;
+        }
+      ];
+    };
+  };
+
+  services.openssh.listenAddresses = [
+    {
+      addr = wireguardIPv4;
+      port = 22;
+    }
+    {
+      addr = "[${wireguardIPv6}]";
+      port = 22;
+    }
+  ];
+}

hosts/default.nix

@@ -1,9 +1,35 @@
-{ self, ... }:
+{
+  self,
+  inputs,
+  config,
+  ...
+}:
 {
   flake = {
-    nixosConfigurations = {
-      nachtigall = self.nixos-flake.lib.mkLinuxSystem {
+    nixosModules = {
+      home-manager = {
         imports = [
+          inputs.home-manager.nixosModules.home-manager
+          {
+            home-manager.useGlobalPkgs = true;
+            home-manager.useUserPackages = true;
+            home-manager.extraSpecialArgs = {
+              flake = {
+                inherit self inputs config;
+              };
+            };
+          }
+        ];
+      };
+    };
+    nixosConfigurations = {
+      nachtigall = self.inputs.nixpkgs.lib.nixosSystem {
+        specialArgs = {
+          flake = {
+            inherit self inputs config;
+          };
+        };
+        modules = [
           self.inputs.agenix.nixosModules.default
           self.nixosModules.home-manager
           ./nachtigall
@@ -11,16 +37,169 @@
           self.nixosModules.unlock-zfs-on-boot
           self.nixosModules.core
           self.nixosModules.docker
+          self.nixosModules.backups
+
+          self.nixosModules.nginx
+          self.nixosModules.collabora
+          self.nixosModules.coturn
+          self.nixosModules.forgejo
+          self.nixosModules.keycloak
+          self.nixosModules.mailman
+          self.nixosModules.mastodon
+          self.nixosModules.nginx-mastodon
+          self.nixosModules.nginx-mastodon-files
+          self.nixosModules.mediawiki
+          self.nixosModules.nextcloud
+          self.nixosModules.nginx-prometheus-exporters
+          self.nixosModules.nginx-website
+          self.nixosModules.nginx-website-miom
+          self.nixosModules.opensearch
+          self.nixosModules.owncast
+          self.nixosModules.postgresql
+          self.nixosModules.prometheus-exporters
+          self.nixosModules.promtail
+          self.nixosModules.searx
+          self.nixosModules.tmate
+          self.nixosModules.tt-rss
+          self.nixosModules.obs-portal
+          self.nixosModules.matrix
+          self.nixosModules.matrix-irc
+          self.nixosModules.matrix-telegram
+          self.nixosModules.nginx-matrix
         ];
       };
 
-      flora-6 = self.nixos-flake.lib.mkLinuxSystem {
-        imports = [
+      metronom = self.inputs.nixpkgs.lib.nixosSystem {
+        specialArgs = {
+          flake = {
+            inherit self inputs config;
+          };
+        };
+        modules = [
           self.inputs.agenix.nixosModules.default
           self.nixosModules.home-manager
-          ./flora-6
+          ./metronom
+          self.nixosModules.overlays
+          self.nixosModules.unlock-zfs-on-boot
+          self.nixosModules.core
+          self.nixosModules.backups
+          self.nixosModules.mail
+          self.nixosModules.prometheus-exporters
+          self.nixosModules.promtail
+
+          self.inputs.simple-nixos-mailserver.nixosModule
+        ];
+      };
+
+      tankstelle = self.inputs.nixpkgs.lib.nixosSystem {
+        specialArgs = {
+          flake = {
+            inherit self inputs config;
+          };
+        };
+        modules = [
+          self.inputs.agenix.nixosModules.default
+          self.nixosModules.home-manager
+          ./tankstelle
           self.nixosModules.overlays
           self.nixosModules.core
+          self.nixosModules.backups
+          self.nixosModules.prometheus-exporters
+          self.nixosModules.promtail
+        ];
+      };
+
+      trinkgenossin = self.inputs.nixpkgs.lib.nixosSystem {
+        specialArgs = {
+          flake = {
+            inherit self inputs config;
+          };
+        };
+        modules = [
+          self.inputs.agenix.nixosModules.default
+          self.nixosModules.home-manager
+          ./trinkgenossin
+          self.nixosModules.backups
+          self.nixosModules.overlays
+          self.nixosModules.unlock-luks-on-boot
+          self.nixosModules.core
+
+          self.nixosModules.garage
+          self.nixosModules.nginx
+
+          # This module is already using options, and those options are used by the grafana module
+          self.nixosModules.keycloak
+          self.nixosModules.grafana
+          self.nixosModules.prometheus
+          self.nixosModules.loki
+        ];
+      };
+
+      delite = self.inputs.nixpkgs.lib.nixosSystem {
+        specialArgs = {
+          flake = {
+            inherit self inputs config;
+          };
+        };
+        modules = [
+          self.inputs.agenix.nixosModules.default
+          self.inputs.disko.nixosModules.disko
+          self.nixosModules.home-manager
+          ./delite
+          self.nixosModules.overlays
+          self.nixosModules.unlock-luks-on-boot
+          self.nixosModules.core
+          self.nixosModules.prometheus-exporters
+          self.nixosModules.promtail
+
+          self.nixosModules.garage
+          self.nixosModules.nginx
+        ];
+      };
+
+      blue-shell = self.inputs.nixpkgs.lib.nixosSystem {
+        specialArgs = {
+          flake = {
+            inherit self inputs config;
+          };
+        };
+        modules = [
+          self.inputs.agenix.nixosModules.default
+          self.inputs.disko.nixosModules.disko
+          self.nixosModules.home-manager
+          ./blue-shell
+          self.nixosModules.overlays
+          self.nixosModules.unlock-luks-on-boot
+          self.nixosModules.core
+          self.nixosModules.prometheus-exporters
+          self.nixosModules.promtail
+
+          self.nixosModules.garage
+          self.nixosModules.nginx
+        ];
+      };
+
+      underground = self.inputs.nixpkgs.lib.nixosSystem {
+        specialArgs = {
+          flake = {
+            inherit self inputs config;
+          };
+        };
+        modules = [
+          self.inputs.agenix.nixosModules.default
+          self.nixosModules.home-manager
+          ./underground
+          self.nixosModules.overlays
+          self.nixosModules.unlock-luks-on-boot
+          self.nixosModules.core
+
+          self.nixosModules.backups
+          self.nixosModules.keycloak
+          self.nixosModules.postgresql
+          self.nixosModules.matrix
+          self.nixosModules.matrix-irc
+          self.nixosModules.nginx
+          self.nixosModules.nginx-matrix
         ];
       };
     };

hosts/delite/configuration.nix

@@ -0,0 +1,33 @@
+{
+  flake,
+  config,
+  pkgs,
+  ...
+}:
+{
+  boot.loader.grub.enable = true;
+
+  boot.kernelParams = [
+    "boot.shell_on_fail=1"
+    "ip=5.255.119.132::5.255.119.1:255.255.255.0:delite::off"
+  ];
+
+  # This option defines the first version of NixOS you have installed on this particular machine,
+  # and is used to maintain compatibility with application data (e.g. databases) created on older NixOS versions.
+  #
+  # Most users should NEVER change this value after the initial install, for any reason,
+  # even if you've upgraded your system to a new NixOS release.
+  #
+  # This value does NOT affect the Nixpkgs version your packages and OS are pulled from,
+  # so changing it will NOT upgrade your system - see https://nixos.org/manual/nixos/stable/#sec-upgrading for how
+  # to actually do that.
+  #
+  # This value being lower than the current NixOS release does NOT mean your system is
+  # out of date, out of support, or vulnerable.
+  #
+  # Do NOT change this value unless you have manually inspected all the changes it would make to your configuration,
+  # and migrated your data accordingly.
+  #
+  # For more information, see `man configuration.nix` or https://nixos.org/manual/nixos/stable/options#opt-system.stateVersion .
+  system.stateVersion = "24.05"; # Did you read the comment?
+}

hosts/delite/default.nix

@@ -0,0 +1,13 @@
+{ flake, ... }:
+
+{
+  imports = [
+    ./hardware-configuration.nix
+    ./configuration.nix
+    ./disk-config.nix
+
+    ./networking.nix
+    ./wireguard.nix
+    #./backups.nix
+  ];
+}

hosts/delite/disk-config.nix

@@ -0,0 +1,84 @@
+{
+  disko.devices = {
+    disk = {
+      main = {
+        type = "disk";
+        device = "/dev/vda";
+        content = {
+          type = "gpt";
+          partitions = {
+            bios = {
+              size = "1M";
+              type = "EF02"; # for grub MBR
+            };
+            boot = {
+              size = "1G";
+              type = "8300";
+              content = {
+                type = "filesystem";
+                format = "ext4";
+                mountpoint = "/boot";
+                mountOptions = [ "defaults" ];
+              };
+            };
+            luks = {
+              size = "100%";
+              content = {
+                type = "luks";
+                name = "cryptroot";
+                extraOpenArgs = [ ];
+                # if you want to use the key for interactive login be sure there is no trailing newline
+                # for example use `echo -n "password" > /tmp/secret.key`
+                passwordFile = "/tmp/luks-password";
+                content = {
+                  type = "lvm_pv";
+                  vg = "vg0";
+                };
+              };
+            };
+          };
+        };
+      };
+    };
+    lvm_vg = {
+      vg0 = {
+        type = "lvm_vg";
+        lvs = {
+          root = {
+            size = "40G";
+            content = {
+              type = "filesystem";
+              format = "ext4";
+              mountpoint = "/";
+              mountOptions = [ "defaults" ];
+            };
+          };
+          swap = {
+            size = "8G";
+            content = {
+              type = "swap";
+            };
+          };
+          data = {
+            size = "800G";
+            content = {
+              type = "filesystem";
+              format = "xfs";
+              mountpoint = "/var/lib/garage/data";
+              mountOptions = [ "defaults" ];
+            };
+          };
+          metadata = {
+            size = "50G";
+            content = {
+              type = "filesystem";
+              format = "btrfs";
+              mountpoint = "/var/lib/garage/meta";
+              mountOptions = [ "defaults" ];
+            };
+          };
+        };
+      };
+    };
+  };
+}

hosts/delite/hardware-configuration.nix

@@ -0,0 +1,26 @@
+# Do not modify this file!  It was generated by ‘nixos-generate-config’
+# and may be overwritten by future invocations.  Please make changes
+# to /etc/nixos/configuration.nix instead.
+{
+  config,
+  lib,
+  pkgs,
+  modulesPath,
+  ...
+}:
+
+{
+  imports = [ (modulesPath + "/profiles/qemu-guest.nix") ];
+
+  boot.initrd.availableKernelModules = [
+    "ata_piix"
+    "uhci_hcd"
+    "virtio_pci"
+    "virtio_blk"
+  ];
+  boot.initrd.kernelModules = [ "dm-snapshot" ];
+  boot.kernelModules = [ ];
+  boot.extraModulePackages = [ ];
+
+  nixpkgs.hostPlatform = lib.mkDefault "x86_64-linux";
+}

hosts/delite/networking.nix

@@ -0,0 +1,26 @@
+{
+  config,
+  pkgs,
+  flake,
+  ...
+}:
+{
+  services.garage.settings.rpc_public_addr = "[2a04:52c0:124:9d8c::2]:3901";
+
+  networking.hostName = "delite";
+  networking.hostId = "00000004";
+
+  networking.useDHCP = false;
+  systemd.network.enable = true;
+  systemd.network.networks."10-wan" = {
+    matchConfig.Name = "ens3";
+    address = [
+      "5.255.119.132/24"
+      "2a04:52c0:124:9d8c::2/48"
+    ];
+    gateway = [
+      "5.255.119.1"
+      "2a04:52c0:124::1"
+    ];
+  };
+}

hosts/delite/wireguard.nix

@@ -0,0 +1,51 @@
+{
+  config,
+  pkgs,
+  flake,
+  ...
+}:
+let
+  wireguardIPv4 = "10.7.6.6";
+  wireguardIPv6 = "fd00:fae:fae:fae:fae:6::";
+in
+{
+  networking.firewall.allowedUDPPorts = [ 51820 ];
+
+  age.secrets.wg-private-key.file = "${flake.self}/secrets/delite-wg-private-key.age";
+
+  networking.wireguard.interfaces = {
+    wg-ssh = {
+      listenPort = 51820;
+      mtu = 1300;
+      ips = [
+        "${wireguardIPv4}/32"
+        "${wireguardIPv6}/96"
+      ];
+      privateKeyFile = config.age.secrets.wg-private-key.path;
+      peers = flake.self.logins.wireguardDevices ++ [
+        {
+          # trinkgenossin.pub.solar
+          publicKey = "QWgHovHxtqiQhnHLouSWiT6GIoQDmuvnThYL5c/rvU4=";
+          allowedIPs = [
+            "10.7.6.5/32"
+            "fd00:fae:fae:fae:fae:5::/96"
+          ];
+          #endpoint = "85.215.152.22:51820";
+          endpoint = "[2a01:239:35d:f500::1]:51820";
+          persistentKeepalive = 15;
+        }
+      ];
+    };
+  };
+
+  services.openssh.listenAddresses = [
+    {
+      addr = wireguardIPv4;
+      port = 22;
+    }
+    {
+      addr = "[${wireguardIPv6}]";
+      port = 22;
+    }
+  ];
+}

hosts/flora-6/apps/caddy.nix

@@ -1,67 +0,0 @@
-{ config
-, lib
-, pkgs
-, flake
-, ...
-}:
-{
-  systemd.tmpfiles.rules = [
-    "d '/data/srv/www/os/download/' 0750 hakkonaut hakkonaut - -"
-  ];
-
-  services.caddy = {
-    enable = lib.mkForce true;
-    group = "hakkonaut";
-    email = "admins@pub.solar";
-    enableReload = true;
-    globalConfig = lib.mkForce ''
-      grace_period 60s
-    '';
-    virtualHosts = {
-      "ci.pub.solar" = {
-        logFormat = lib.mkForce ''
-          output discard
-        '';
-        extraConfig = ''
-          reverse_proxy :4000
-        '';
-      };
-      "flora-6.pub.solar" = {
-        logFormat = lib.mkForce ''
-          output discard
-        '';
-        extraConfig = ''
-                    basicauth * {
-          	    hakkonaut $2a$14$mmIAy/Ezm6YGohUtXa2mWeW6Bcw1MQXPhrRbz14jAD2iUu3oob/t.
-                    }
-                    reverse_proxy :${toString config.services.loki.configuration.server.http_listen_port}
-        '';
-      };
-      "alerts.pub.solar" = {
-        logFormat = lib.mkForce ''
-          output discard
-        '';
-        extraConfig = ''
-        reverse_proxy 10.7.6.2:${toString config.services.prometheus.alertmanager.port}
-        '';
-      };
-      "grafana.pub.solar" = {
-        logFormat = lib.mkForce ''
-          output discard
-        '';
-        extraConfig = ''
-          reverse_proxy :${toString config.services.grafana.settings.server.http_port}
-        '';
-      };
-      "obs-portal.pub.solar" = {
-        logFormat = lib.mkForce ''
-          output discard
-        '';
-        extraConfig = ''
-          reverse_proxy obs-portal.svc.e5756d08-36fd-424b-f8bc-acdb92ca7b82.lev-1.int.greenbaum.zone:3000
-        '';
-      };
-    };
-  };
-  networking.firewall.allowedTCPPorts = [ 80 443 ];
-}

hosts/flora-6/apps/drone.nix

@@ -1,119 +0,0 @@
-{ config
-, lib
-, pkgs
-, flake
-, ...
-}: {
-  age.secrets.drone-secrets = {
-    file = "${flake.self}/secrets/drone-secrets.age";
-    mode = "600";
-    owner = "drone";
-  };
-  age.secrets.drone-db-secrets = {
-    file = "${flake.self}/secrets/drone-db-secrets.age";
-    mode = "600";
-    owner = "drone";
-  };
-
-  users.users.drone = {
-    description = "Drone Service";
-    home = "/var/lib/drone";
-    useDefaultShell = true;
-    uid = 994;
-    group = "drone";
-    isSystemUser = true;
-  };
-
-  users.groups.drone = { };
-
-  systemd.tmpfiles.rules = [
-    "d '/var/lib/drone-db' 0750 drone drone - -"
-  ];
-
-  systemd.services."docker-network-drone" =
-    let
-      docker = config.virtualisation.oci-containers.backend;
-      dockerBin = "${pkgs.${docker}}/bin/${docker}";
-    in
-    {
-      serviceConfig.Type = "oneshot";
-      before = [ "docker-drone-server.service" ];
-      script = ''
-        ${dockerBin} network inspect drone-net >/dev/null 2>&1 || ${dockerBin} network create drone-net --subnet 172.20.0.0/24
-      '';
-    };
-
-  virtualisation = {
-    docker = {
-      enable = true; # sadly podman is not supported rightnow
-      extraOptions = ''
-        --data-root /data/docker
-      '';
-    };
-
-    oci-containers = {
-      backend = "docker";
-      containers."drone-db" = {
-        image = "postgres:14";
-        autoStart = true;
-        user = "994";
-        volumes = [
-          "/var/lib/drone-db:/var/lib/postgresql/data"
-        ];
-        extraOptions = [
-          "--network=drone-net"
-        ];
-        environmentFiles = [
-          config.age.secrets.drone-db-secrets.path
-        ];
-      };
-      containers."drone-server" = {
-        image = "drone/drone:2";
-        autoStart = true;
-        user = "994";
-        ports = [
-          "127.0.0.1:4000:80"
-        ];
-        dependsOn = [ "drone-db" ];
-        extraOptions = [
-          "--network=drone-net"
-          "--pull=always"
-          "--add-host=nachtigall.pub.solar:10.7.6.1"
-        ];
-        environment = {
-          DRONE_GITEA_SERVER = "https://git.pub.solar";
-          DRONE_SERVER_HOST = "ci.pub.solar";
-          DRONE_SERVER_PROTO = "https";
-          DRONE_DATABASE_DRIVER = "postgres";
-        };
-        environmentFiles = [
-          config.age.secrets.drone-secrets.path
-        ];
-      };
-      containers."drone-docker-runner" = {
-        image = "drone/drone-runner-docker:1";
-        autoStart = true;
-        # needs to run as root
-        #user = "994";
-        volumes = [
-          "/var/run/docker.sock:/var/run/docker.sock"
-        ];
-        dependsOn = [ "drone-db" ];
-        extraOptions = [
-          "--network=drone-net"
-          "--pull=always"
-          "--add-host=nachtigall.pub.solar:10.7.6.1"
-        ];
-        environment = {
-          DRONE_RPC_HOST = "ci.pub.solar";
-          DRONE_RPC_PROTO = "https";
-          DRONE_RUNNER_CAPACITY = "2";
-          DRONE_RUNNER_NAME = "flora-6-docker-runner";
-        };
-        environmentFiles = [
-          config.age.secrets.drone-secrets.path
-        ];
-      };
-    };
-  };
-}

hosts/flora-6/apps/forgejo-actions-runner.nix

@@ -1,65 +0,0 @@
-{ config
-, lib
-, pkgs
-, flake
-, ...
-}: {
-  age.secrets.forgejo-actions-runner-token = {
-    file = "${flake.self}/secrets/forgejo-actions-runner-token.age";
-    mode = "644";
-  };
-
-  # Trust docker bridge interface traffic
-  # Needed for the docker runner to communicate with the act_runner cache
-  networking.firewall.trustedInterfaces = [ "br-+" ];
-
-  users.users.gitea-runner = {
-    home = "/var/lib/gitea-runner/flora-6";
-    useDefaultShell = true;
-    group = "gitea-runner";
-    isSystemUser = true;
-  };
-
-  users.groups.gitea-runner = {};
-
-  systemd.services."gitea-runner-flora\\x2d6".serviceConfig = {
-    DynamicUser = lib.mkForce false;
-  };
-
-  systemd.tmpfiles.rules = [
-    "d '/data/gitea-actions-runner' 0750 gitea-runner gitea-runner - -"
-    "d '/var/lib/gitea-runner' 0750 gitea-runner gitea-runner - -"
-  ];
-
-  # forgejo actions runner
-  # https://forgejo.org/docs/latest/admin/actions/
-  # https://docs.gitea.com/usage/actions/quickstart
-  services.gitea-actions-runner = {
-    package = pkgs.forgejo-runner;
-    instances."flora-6" = {
-      enable = true;
-      name = config.networking.hostName;
-      url = "https://git.pub.solar";
-      tokenFile = config.age.secrets.forgejo-actions-runner-token.path;
-      settings = {
-        cache = {
-          enabled = true;
-          dir = "/data/gitea-actions-runner/actcache";
-          host = "";
-          port = 0;
-          external_server = "";
-        };
-      };
-      labels = [
-        # provide a debian 12 bookworm base with Node.js for actions
-        "debian-latest:docker://git.pub.solar/pub-solar/actions-base-image:20-bookworm"
-        # fake the ubuntu name, commonly used in actions examples
-        "ubuntu-latest:docker://git.pub.solar/pub-solar/actions-base-image:20-bookworm"
-        # alpine with Node.js
-        "alpine-latest:docker://node:20-alpine"
-        # nix flakes enabled image with Node.js
-        "nix-flakes:docker://git.pub.solar/pub-solar/nix-flakes-node:latest"
-      ];
-    };
-  };
-}

hosts/flora-6/apps/loki.nix

@@ -1,84 +0,0 @@
-{ config
-, lib
-, pkgs
-, flake
-, ...
-}: {
-  # source: https://gist.github.com/rickhull/895b0cb38fdd537c1078a858cf15d63e
-  # https://grafana.com/docs/loki/latest/configure/examples/#1-local-configuration-exampleyaml
-  services.loki = {
-    enable = true;
-    configuration = {
-      server.http_listen_port = 3100;
-      auth_enabled = false;
-      common = {
-        ring = {
-          instance_addr = "127.0.0.1";
-          kvstore = {
-            store = "inmemory";
-          };
-        };
-        replication_factor = 1;
-        path_prefix = "/var/lib/loki";
-        storage = {
-          filesystem = {
-            chunks_directory = "chunks/";
-            rules_directory = "rules/";
-          };
-        };
-      };
-      # Keep logs for 4 weeks
-      # https://grafana.com/docs/loki/latest/operations/storage/retention/
-      limits_config.retention_period = "4w";
-      compactor = {
-        shared_store = "filesystem";
-        compaction_interval = "10m";
-        retention_enabled = true;
-        retention_delete_delay = "2h";
-        retention_delete_worker_count = 150;
-      };
-      schema_config = {
-        configs = [{
-          from = "2020-05-15";
-          store = "boltdb-shipper";
-          object_store = "filesystem";
-          schema = "v11";
-          index = {
-            prefix = "index_";
-            period = "24h";
-          };
-        }];
-      };
-    };
-  };
-
-  services.promtail = {
-    enable = true;
-    configuration = {
-      server = {
-        http_listen_port = 9080;
-        grpc_listen_port = 0;
-      };
-      positions = {
-        filename = "/tmp/positions.yaml";
-      };
-      clients = [{
-        url = "http://127.0.0.1:${toString config.services.loki.configuration.server.http_listen_port}/loki/api/v1/push";
-      }];
-      scrape_configs = [{
-        job_name = "journal";
-        journal = {
-          max_age = "24h";
-          labels = {
-            job = "systemd-journal";
-            host = "flora-6";
-          };
-        };
-        relabel_configs = [{
-          source_labels = [ "__journal__systemd_unit" ];
-          target_label = "unit";
-        }];
-      }];
-    };
-  };
-}

hosts/flora-6/apps/prometheus.nix

@@ -1,114 +0,0 @@
-{ config
-, lib
-, pkgs
-, flake
-, ...
-}: {
-  age.secrets.nachtigall-metrics-prometheus-basic-auth-password = {
-    file = "${flake.self}/secrets/nachtigall-metrics-prometheus-basic-auth-password.age";
-    mode = "600";
-    owner = "prometheus";
-  };
-
-  services.prometheus = {
-    enable = true;
-    port = 9001;
-    exporters = {
-      node = {
-        enable = true;
-        enabledCollectors = [ "systemd" ];
-        port = 9002;
-      };
-    };
-    globalConfig = {
-      scrape_interval = "10s";
-      scrape_timeout = "9s";
-    };
-    scrapeConfigs = [
-      {
-        job_name = "node-exporter-http";
-        static_configs = [{
-          targets = [ "127.0.0.1:${toString config.services.prometheus.exporters.node.port}" ];
-          labels = {
-            instance = "flora-6";
-          };
-        }];
-      }
-      {
-        job_name = "node-exporter-https";
-        scheme = "https";
-        metrics_path = "/metrics";
-        basic_auth = {
-          username = "hakkonaut";
-          password_file = "${config.age.secrets.nachtigall-metrics-prometheus-basic-auth-password.path}";
-        };
-        static_configs = [{
-          targets = [ "nachtigall.pub.solar" ];
-          labels = {
-            instance = "nachtigall";
-          };
-        }];
-      }
-      {
-        job_name = "matrix-synapse";
-        scheme = "https";
-        metrics_path = "/_synapse/metrics";
-        basic_auth = {
-          username = "hakkonaut";
-          password_file = "${config.age.secrets.nachtigall-metrics-prometheus-basic-auth-password.path}";
-        };
-        static_configs = [{
-          targets = [ "nachtigall.pub.solar" ];
-          labels = {
-            instance = "nachtigall";
-          };
-        }];
-      }
-    ];
-
-    ruleFiles = [
-      (pkgs.writeText "prometheus-rules.yml" (builtins.toJSON {
-        groups = [{
-          name = "alerting-rules";
-          rules = import ./alert-rules.nix { inherit lib; };
-        }];
-      }))
-    ];
-
-    alertmanagers = [{ static_configs = [{ targets = [ "localhost:9093" ]; }]; }];
-
-    alertmanager = {
-      enable = true;
-      # port = 9093; # Default
-      webExternalUrl = "https://alerts.pub.solar"; # TODO use a proper url?
-      # environmentFile = "${config.age.secrets.nachtigall-alertmanager-envfile.path}";
-      configuration = {
-
-        route = {
-          receiver = "all";
-          group_by = [ "instance" ];
-          group_wait = "30s";
-          group_interval = "2m";
-          repeat_interval = "24h";
-        };
-
-        receivers = [{
-          name = "all";
-          # Email config documentation: https://prometheus.io/docs/alerting/latest/configuration/#email_config
-          email_configs = [{
-            send_resolved = true;
-            to = "TODO";
-            from = "alerts@pub.solar";
-            smarthost = "TODO";
-            auth_username = "TODO";
-            auth_password_file = "${config.age.secrets.nachtigall-alertmanager-smtp-password.path}";
-            require_tls = true;
-          }];
-          # TODO:
-          # For matrix notifications, look into: https://github.com/pinpox/matrix-hook and add a webhook
-          #   webhook_configs = [ { url = "http://127.0.0.1:11000/alert"; } ];
-        }];
-      };
-    };
-  };
-}

hosts/flora-6/configuration.nix

@@ -1,71 +0,0 @@
-{ config
-, lib
-, pkgs
-, flake
-, ...
-}:
-let
-  psCfg = config.pub-solar;
-in
-{
-  config = {
-    # Override nix.conf for more agressive garbage collection
-    nix.extraOptions = lib.mkForce ''
-      experimental-features = flakes nix-command
-      min-free = 536870912
-      keep-outputs = false
-      keep-derivations = false
-      fallback = true
-    '';
-
-    # # #
-    # # # Triton host specific options
-    # # # DO NOT ALTER below this line, changes might render system unbootable
-    # # #
-
-    # Use the systemd-boot EFI boot loader.
-    boot.loader.systemd-boot.enable = true;
-    boot.loader.efi.canTouchEfiVariables = true;
-
-    # Force getting the hostname from cloud-init
-    networking.hostName = lib.mkDefault "";
-
-    # We use cloud-init to configure networking, this option should fix
-    # systemd-networkd-wait-online timeouts
-    #systemd.services."systemd-networkd".environment.SYSTEMD_LOG_LEVEL = "debug";
-    systemd.network.wait-online.ignoredInterfaces = [
-      "docker0"
-      "wg-ssh"
-    ];
-
-    # List services that you want to enable:
-    services.cloud-init.enable = true;
-    services.cloud-init.ext4.enable = true;
-    services.cloud-init.network.enable = true;
-    # use the default NixOS cloud-init config, but add some SmartOS customization to it
-    environment.etc."cloud/cloud.cfg.d/90_smartos.cfg".text = ''
-      datasource_list: [ SmartOS ]
-
-      # Do not create the centos/ubuntu/debian user
-      users: [ ]
-
-      # mount second disk with label ephemeral0, gets formated by cloud-init
-      # this will fail to get added to /etc/fstab as it's read-only, but should
-      # mount at boot anyway
-      mounts:
-      - [ vdb, /data, auto, "defaults,nofail" ]
-    '';
-
-    # We manage the firewall with nix, too
-    # altough triton can also manage firewall rules via the triton fwrule subcommand
-    networking.firewall.enable = true;
-
-    # This value determines the NixOS release from which the default
-    # settings for stateful data, like file locations and database versions
-    # on your system were taken. It‘s perfectly fine and recommended to leave
-    # this value at the release version of the first install of this system.
-    # Before changing this value read the documentation for this option
-    # (e.g. man configuration.nix or on https://nixos.org/nixos/options.html).
-    system.stateVersion = "22.05"; # Did you read the comment?
-  };
-}

hosts/flora-6/default.nix

@@ -1,20 +0,0 @@
-{ ... }:
-
-{
-  imports =
-    [
-      # Include the results of the hardware scan.
-      ./hardware-configuration.nix
-      ./configuration.nix
-      ./triton-vmtools.nix
-      ./wireguard.nix
-
-      ./apps/caddy.nix
-
-      ./apps/drone.nix
-      ./apps/forgejo-actions-runner.nix
-      ./apps/grafana.nix
-      ./apps/prometheus.nix
-      ./apps/loki.nix
-    ];
-}

hosts/flora-6/hardware-configuration.nix

@@ -1,44 +0,0 @@
-# Do not modify this file!  It was generated by ‘nixos-generate-config’
-# and may be overwritten by future invocations.  Please make changes
-# to /etc/nixos/configuration.nix instead.
-{ config
-, lib
-, pkgs
-, modulesPath
-, ...
-}: {
-  imports = [ ];
-
-  boot.initrd.availableKernelModules = [ "ahci" "virtio_pci" "xhci_pci" "sr_mod" "virtio_blk" ];
-  boot.initrd.kernelModules = [ ];
-  boot.kernelModules = [ ];
-  boot.extraModulePackages = [ ];
-
-  fileSystems."/" = {
-    device = "/dev/disk/by-label/nixos";
-    autoResize = true;
-    fsType = "ext4";
-  };
-
-  fileSystems."/boot" = {
-    device = "/dev/disk/by-label/boot";
-    fsType = "vfat";
-  };
-
-  fileSystems."/data" = {
-    device = "/dev/disk/by-label/ephemeral0";
-    fsType = "ext4";
-    options = [
-      "defaults"
-      "nofail"
-    ];
-  };
-
-  swapDevices = [ ];
-
-  networking.useDHCP = lib.mkDefault false;
-  networking.networkmanager.enable = lib.mkForce false;
-
-  nixpkgs.hostPlatform = lib.mkDefault "x86_64-linux";
-  hardware.cpu.intel.updateMicrocode = lib.mkDefault config.hardware.enableRedistributableFirmware;
-}

hosts/flora-6/triton-vmtools.nix

@@ -1,8 +0,0 @@
-{ pkgs
-, flake
-, ...
-}: {
-  environment.systemPackages = with pkgs; [
-    flake.inputs.triton-vmtools.packages.${pkgs.system}.default
-  ];
-}

hosts/flora-6/wireguard.nix

@@ -1,40 +0,0 @@
-{
-  config,
-  pkgs,
-  flake,
-  ... }:
-{
-  networking.firewall.allowedUDPPorts = [ 51820 ];
-
-  age.secrets.wg-private-key.file = "${flake.self}/secrets/flora6-wg-private-key.age";
-
-  networking.wireguard.interfaces = {
-    wg-ssh = {
-      listenPort = 51820;
-      mtu = 1300;
-      ips = [
-        "10.7.6.2/32"
-        "fd00:fae:fae:fae:fae:2::/96"
-      ];
-      privateKeyFile = config.age.secrets.wg-private-key.path;
-      peers = flake.self.logins.admins.wireguardDevices ++ [
-        { # nachtigall.pub.solar
-          endpoint = "138.201.80.102:51820";
-          publicKey = "qzNywKY9RvqTnDO8eLik75/SHveaSk9OObilDzv+xkk=";
-          allowedIPs = [ "10.7.6.1/32" "fd00:fae:fae:fae:fae:1::/96" ];
-        }
-      ];
-    };
-  };
-
-  services.openssh.listenAddresses = [ 
-    {
-      addr = "10.7.6.2";
-      port = 22;
-    }
-    {
-      addr = "[fd00:fae:fae:fae:fae:2::]";
-      port = 22;
-    }
-  ];
-}

hosts/metronom/backups.nix

@@ -0,0 +1,29 @@
+{ config, flake, ... }:
+{
+  age.secrets."restic-repo-storagebox-metronom" = {
+    file = "${flake.self}/secrets/restic-repo-storagebox-metronom.age";
+    mode = "400";
+    owner = "root";
+  };
+  age.secrets.restic-repo-garage-metronom = {
+    file = "${flake.self}/secrets/restic-repo-garage-metronom.age";
+    mode = "400";
+    owner = "root";
+  };
+  age.secrets.restic-repo-garage-metronom-env = {
+    file = "${flake.self}/secrets/restic-repo-garage-metronom-env.age";
+    mode = "400";
+    owner = "root";
+  };
+
+  pub-solar-os.backups.repos.storagebox = {
+    passwordFile = config.age.secrets."restic-repo-storagebox-metronom".path;
+    repository = "sftp:u377325@u377325.your-storagebox.de:/metronom-backups";
+  };
+
+  pub-solar-os.backups.repos.garage = {
+    passwordFile = config.age.secrets."restic-repo-garage-metronom".path;
+    environmentFile = config.age.secrets."restic-repo-garage-metronom-env".path;
+    repository = "s3:https://buckets.pub.solar/metronom-backups";
+  };
+}

hosts/metronom/configuration.nix

@@ -0,0 +1,47 @@
+{
+  flake,
+  config,
+  pkgs,
+  ...
+}:
+{
+  boot.loader.systemd-boot.enable = true;
+  boot.supportedFilesystems = [ "zfs" ];
+
+  boot.kernelParams = [
+    "boot.shell_on_fail=1"
+    "ip=dhcp"
+  ];
+
+  boot.initrd.availableKernelModules = [ "igb" ];
+
+  # https://nixos.wiki/wiki/ZFS#declarative_mounting_of_ZFS_datasets
+  systemd.services.zfs-mount.enable = false;
+
+  services.zfs.autoScrub = {
+    enable = true;
+    pools = [ "root_pool" ];
+  };
+
+  # Declarative SSH private key
+  age.secrets."metronom-root-ssh-key" = {
+    file = "${flake.self}/secrets/metronom-root-ssh-key.age";
+    path = "/root/.ssh/id_ed25519";
+    mode = "400";
+    owner = "root";
+  };
+
+  # Declarative SSH private key
+  #age.secrets."metronom-root-ssh-key" = {
+  #  file = "${flake.self}/secrets/metronom-root-ssh-key.age";
+  #  path = "/root/.ssh/id_ed25519";
+  #  mode = "400";
+  #  owner = "root";
+  #};
+
+  # This value determines the NixOS release with which your system is to be
+  # compatible, in order to avoid breaking some software such as database
+  # servers. You should change this only after NixOS release notes say you
+  # should.
+  system.stateVersion = "23.11"; # Did you read the comment?
+}

hosts/metronom/default.nix

@@ -0,0 +1,12 @@
+{ flake, ... }:
+
+{
+  imports = [
+    ./hardware-configuration.nix
+    ./configuration.nix
+
+    ./networking.nix
+    ./wireguard.nix
+    ./backups.nix
+  ];
+}

hosts/metronom/hardware-configuration.nix

@@ -0,0 +1,48 @@
+# Do not modify this file!  It was generated by ‘nixos-generate-config’
+# and may be overwritten by future invocations.  Please make changes
+# to /etc/nixos/configuration.nix instead.
+{
+  config,
+  lib,
+  pkgs,
+  modulesPath,
+  ...
+}:
+
+{
+  imports = [ (modulesPath + "/profiles/qemu-guest.nix") ];
+
+  boot.initrd.availableKernelModules = [
+    "xhci_pci"
+    "virtio_pci"
+    "virtio_scsi"
+    "usbhid"
+    "sr_mod"
+  ];
+  boot.initrd.kernelModules = [ ];
+  boot.kernelModules = [ ];
+  boot.extraModulePackages = [ ];
+
+  fileSystems."/" = {
+    device = "root_pool/root";
+    fsType = "zfs";
+  };
+
+  fileSystems."/boot" = {
+    device = "/dev/disk/by-uuid/2083-C68E";
+    fsType = "vfat";
+  };
+
+  swapDevices = [ ];
+
+  # Enables DHCP on each ethernet and wireless interface. In case of scripted networking
+  # (the default) this is the recommended approach. When using systemd-networkd it's
+  # still possible to use this option, but it's recommended to use it in conjunction
+  # with explicit per-interface declarations with `networking.interfaces.<interface>.useDHCP`.
+  networking.useDHCP = lib.mkDefault true;
+  # networking.interfaces.eth0.useDHCP = lib.mkDefault true;
+
+  nixpkgs.hostPlatform = lib.mkDefault "aarch64-linux";
+  powerManagement.cpuFreqGovernor = lib.mkDefault "ondemand";
+  hardware.cpu.amd.updateMicrocode = lib.mkDefault config.hardware.enableRedistributableFirmware;
+}

hosts/metronom/networking.nix

@@ -0,0 +1,19 @@
+{
+  config,
+  pkgs,
+  flake,
+  ...
+}:
+{
+
+  networking.hostName = "metronom";
+  networking.extraHosts = ''
+    127.0.0.2 mail.pub.solar mail
+    ::1 mail.pub.solar mail
+  '';
+  networking.hostId = "00000002";
+
+  networking.enableIPv6 = true;
+  networking.useDHCP = false;
+  networking.interfaces."enp1s0".useDHCP = true;
+}

hosts/metronom/wireguard.nix

@@ -0,0 +1,56 @@
+{
+  config,
+  pkgs,
+  flake,
+  ...
+}:
+{
+  networking.firewall.allowedUDPPorts = [ 51820 ];
+
+  age.secrets.wg-private-key.file = "${flake.self}/secrets/metronom-wg-private-key.age";
+
+  networking.wireguard.interfaces = {
+    wg-ssh = {
+      listenPort = 51820;
+      mtu = 1300;
+      ips = [
+        "10.7.6.3/32"
+        "fd00:fae:fae:fae:fae:3::/96"
+      ];
+      privateKeyFile = config.age.secrets.wg-private-key.path;
+      peers = flake.self.logins.wireguardDevices ++ [
+        {
+          # nachtigall.pub.solar
+          endpoint = "138.201.80.102:51820";
+          publicKey = "qzNywKY9RvqTnDO8eLik75/SHveaSk9OObilDzv+xkk=";
+          allowedIPs = [
+            "10.7.6.1/32"
+            "fd00:fae:fae:fae:fae:1::/96"
+          ];
+        }
+        {
+          # trinkgenossin.pub.solar
+          publicKey = "QWgHovHxtqiQhnHLouSWiT6GIoQDmuvnThYL5c/rvU4=";
+          allowedIPs = [
+            "10.7.6.5/32"
+            "fd00:fae:fae:fae:fae:5::/96"
+          ];
+          #endpoint = "85.215.152.22:51820";
+          endpoint = "[2a01:239:35d:f500::1]:51820";
+          persistentKeepalive = 15;
+        }
+      ];
+    };
+  };
+
+  services.openssh.listenAddresses = [
+    {
+      addr = "10.7.6.3";
+      port = 22;
+    }
+    {
+      addr = "[fd00:fae:fae:fae:fae:3::]";
+      port = 22;
+    }
+  ];
+}

hosts/nachtigall/apps/keycloak.nix

@@ -1,96 +0,0 @@
-{ flake
-, config
-, lib
-, pkgs
-, ...
-}: {
-  age.secrets.keycloak-database-password = {
-    file = "${flake.self}/secrets/keycloak-database-password.age";
-    mode = "600";
-    #owner = "keycloak";
-  };
-
-  services.nginx.virtualHosts."auth.pub.solar" = {
-    enableACME = true;
-    forceSSL = true;
-
-    locations = {
-      "= /" = {
-        extraConfig = ''
-          return 302 /realms/pub.solar/account;
-        '';
-      };
-
-      "/" = {
-        extraConfig = ''
-          proxy_pass http://127.0.0.1:8080;
-          proxy_buffer_size 8k;
-        '';
-      };
-    };
-  };
-
-  # keycloak
-  services.keycloak = {
-    enable = true;
-    database.passwordFile = config.age.secrets.keycloak-database-password.path;
-    settings = {
-      hostname = "auth.pub.solar";
-      http-host = "127.0.0.1";
-      http-port = 8080;
-      proxy = "edge";
-      features = "declarative-user-profile";
-    };
-    themes = {
-      "pub.solar" = flake.inputs.keycloak-theme-pub-solar.legacyPackages.${pkgs.system}.keycloak-theme-pub-solar;
-    };
-  };
-
-  services.restic.backups.keycloak-droppie = {
-    paths = [
-      "/tmp/keycloak-backup.sql"
-    ];
-    timerConfig = {
-      OnCalendar = "*-*-* 02:00:00 Etc/UTC";
-      # droppie will be offline if nachtigall misses the timer
-      Persistent = false;
-    };
-    initialize = true;
-    passwordFile = config.age.secrets."restic-repo-droppie".path;
-    repository = "sftp:yule@droppie.b12f.io:/media/internal/pub.solar";
-    backupPrepareCommand = ''
-      ${pkgs.sudo}/bin/sudo -u postgres ${pkgs.postgresql}/bin/pg_dump -d keycloak > /tmp/keycloak-backup.sql
-    '';
-    backupCleanupCommand = ''
-      rm /tmp/keycloak-backup.sql
-    '';
-    pruneOpts = [
-      "--keep-daily 7"
-      "--keep-weekly 4"
-      "--keep-monthly 3"
-    ];
-  };
-
-  services.restic.backups.keycloak-storagebox = {
-    paths = [
-      "/tmp/keycloak-backup.sql"
-    ];
-    timerConfig = {
-      OnCalendar = "*-*-* 04:10:00 Etc/UTC";
-    };
-    initialize = true;
-    passwordFile = config.age.secrets."restic-repo-storagebox".path;
-    repository = "sftp:u377325@u377325.your-storagebox.de:/backups";
-    backupPrepareCommand = ''
-      ${pkgs.sudo}/bin/sudo -u postgres ${pkgs.postgresql}/bin/pg_dump -d keycloak > /tmp/keycloak-backup.sql
-    '';
-    backupCleanupCommand = ''
-      rm /tmp/keycloak-backup.sql
-    '';
-    pruneOpts = [
-      "--keep-daily 7"
-      "--keep-weekly 4"
-      "--keep-monthly 3"
-    ];
-  };
-}

hosts/nachtigall/apps/matrix/matrix-log-config.yaml

@@ -1,40 +0,0 @@
-version: 1
-
-formatters:
-  precise:
-    format: '%(asctime)s - %(name)s - %(lineno)d - %(levelname)s - %(request)s - %(message)s'
-
-filters:
-  context:
-    (): synapse.util.logcontext.LoggingContextFilter
-    request: ""
-
-handlers:
-  console:
-    class: logging.StreamHandler
-    formatter: precise
-    filters: [context]
-
-loggers:
-  synapse:
-    level: WARNING
-
-  synapse.storage.SQL:
-    # beware: increasing this to DEBUG will make synapse log sensitive
-    # information such as access tokens.
-    level: WARNING
-
-  synapse.http.matrixfederationclient:
-    level: CRITICAL
-  synapse.federation.sender.per_destination_queue:
-    level: CRITICAL
-  synapse.handlers.device:
-    level: CRITICAL
-  synapse.replication.tcp.handler:
-    level: CRITICAL
-  shared_secret_authenticator:
-    level: INFO
-
-root:
-  level: WARNING
-  handlers: [console]

hosts/nachtigall/apps/matrix/synapse.nix

@@ -1,321 +0,0 @@
-{ flake, config, pkgs, ... }:
-let
-  publicDomain = "matrix.pub.solar";
-  serverDomain = "pub.solar";
-in
-{
-  age.secrets."matrix-synapse-signing-key" = {
-    file = "${flake.self}/secrets/matrix-synapse-signing-key.age";
-    mode = "400";
-    owner = "matrix-synapse";
-  };
-
-  age.secrets."matrix-synapse-secret-config.yaml" = {
-    file = "${flake.self}/secrets/matrix-synapse-secret-config.yaml.age";
-    mode = "400";
-    owner = "matrix-synapse";
-  };
-
-  age.secrets."matrix-synapse-sliding-sync-secret" = {
-    file = "${flake.self}/secrets/matrix-synapse-sliding-sync-secret.age";
-    mode = "400";
-    owner = "matrix-synapse";
-  };
-
-  services.matrix-synapse = {
-    enable = true;
-    settings = {
-      server_name = serverDomain;
-      public_baseurl = "https://${publicDomain}/";
-      database = {
-        name = "psycopg2";
-        args = {
-          host = "/run/postgresql";
-          cp_max = 10;
-          cp_min = 5;
-          database = "matrix";
-        };
-        allow_unsafe_locale = false;
-        txn_limit = 0;
-      };
-      listeners = [
-        {
-          bind_addresses = [
-            "127.0.0.1"
-          ];
-          port = 8008;
-          resources = [
-            {
-              compress = true;
-              names = [
-                "client"
-              ];
-            }
-            {
-              compress = false;
-              names = [
-                "federation"
-              ];
-            }
-          ];
-          tls = false;
-          type = "http";
-          x_forwarded = true;
-        }
-        {
-          bind_addresses = [
-            "127.0.0.1"
-          ];
-          port = 8012;
-          resources = [
-            {
-              names = [
-                "metrics"
-              ];
-            }
-          ];
-          tls = false;
-          type = "metrics";
-        }
-      ];
-
-      account_threepid_delegates.msisdn = "";
-      alias_creation_rules = [{
-        action = "allow";
-        alias = "*";
-        room_id = "*";
-        user_id = "*";
-      }];
-      allow_guest_access = false;
-      allow_public_rooms_over_federation = true;
-      allow_public_rooms_without_auth = false;
-      auto_join_rooms = [
-        "#community:${serverDomain}"
-        "#general:${serverDomain}"
-      ];
-
-      autocreate_auto_join_rooms = true;
-      caches.global_factor = 0.5;
-
-      default_room_version = "10";
-      disable_msisdn_registration = true;
-      enable_media_repo = true;
-      enable_metrics = true;
-      mau_stats_only = true;
-      enable_registration = false;
-      enable_registration_captcha = false;
-      enable_registration_without_verification = false;
-      enable_room_list_search = true;
-      encryption_enabled_by_default_for_room_type = "off";
-      event_cache_size = "100K";
-      federation_rr_transactions_per_room_per_second = 50;
-      federation_client_minimum_tls_version = "1.2";
-      forget_rooms_on_leave = true;
-      include_profile_data_on_invite = true;
-      instance_map = { };
-      limit_profile_requests_to_users_who_share_rooms = false;
-
-      log_config = ./matrix-log-config.yaml;
-
-      max_spider_size = "10M";
-      max_upload_size = "50M";
-      media_storage_providers = [ ];
-
-      password_config = {
-        enabled = false;
-        localdb_enabled = false;
-        pepper = "";
-      };
-
-      presence.enabled = true;
-      push.include_content = false;
-
-      rc_admin_redaction = {
-        burst_count = 50;
-        per_second = 1;
-      };
-      rc_federation = {
-        concurrent = 3;
-        reject_limit = 50;
-        sleep_delay = 500;
-        sleep_limit = 10;
-        window_size = 1000;
-      };
-      rc_invites = {
-        per_issuer = {
-          burst_count = 10;
-          per_second = 0.3;
-        };
-        per_room = {
-          burst_count = 10;
-          per_second = 0.3;
-        };
-        per_user = {
-          burst_count = 5;
-          per_second = 0.003;
-        };
-      };
-      rc_joins = {
-        local = {
-          burst_count = 10;
-          per_second = 0.1;
-        };
-        remote = {
-          burst_count = 10;
-          per_second = 0.01;
-        };
-      };
-      rc_login = {
-        account = {
-          burst_count = 3;
-          per_second = 0.17;
-        };
-        address = {
-          burst_count = 3;
-          per_second = 0.17;
-        };
-        failed_attempts = {
-          burst_count = 3;
-          per_second = 0.17;
-        };
-      };
-      rc_message = {
-        burst_count = 10;
-        per_second = 0.2;
-      };
-      rc_registration = {
-        burst_count = 3;
-        per_second = 0.17;
-      };
-      redaction_retention_period = "7d";
-      forgotten_room_retention_period = "7d";
-      redis.enabled = false;
-      registration_requires_token = false;
-      registrations_require_3pid = [ "email" ];
-      report_stats = false;
-      require_auth_for_profile_requests = false;
-      room_list_publication_rules = [{
-        action = "allow";
-        alias = "*";
-        room_id = "*";
-        user_id = "*";
-      }];
-
-      signing_key_path = "/run/agenix/matrix-synapse-signing-key";
-
-      stream_writers = { };
-      trusted_key_servers = [{ server_name = "matrix.org"; }];
-      suppress_key_server_warning = true;
-
-      turn_allow_guests = false;
-      turn_uris = [
-        "turn:${config.services.coturn.realm}:3478?transport=udp"
-        "turn:${config.services.coturn.realm}:3478?transport=tcp"
-      ];
-      turn_user_lifetime = "1h";
-
-      url_preview_accept_language = [
-        "en-US"
-        "en"
-      ];
-      url_preview_enabled = true;
-      url_preview_ip_range_blacklist = [
-        "127.0.0.0/8"
-        "10.0.0.0/8"
-        "172.16.0.0/12"
-        "192.168.0.0/16"
-        "100.64.0.0/10"
-        "192.0.0.0/24"
-        "169.254.0.0/16"
-        "192.88.99.0/24"
-        "198.18.0.0/15"
-        "192.0.2.0/24"
-        "198.51.100.0/24"
-        "203.0.113.0/24"
-        "224.0.0.0/4"
-        "::1/128"
-        "fe80::/10"
-        "fc00::/7"
-        "2001:db8::/32"
-        "ff00::/8"
-        "fec0::/10"
-      ];
-
-      user_directory = {
-        prefer_local_users = false;
-        search_all_users = false;
-      };
-      user_ips_max_age = "28d";
-
-      app_service_config_files = [
-        "/var/lib/matrix-synapse/telegram-registration.yaml"
-        "/var/lib/matrix-appservice-irc/registration.yml"
-        # "/matrix-appservice-slack-registration.yaml"
-        # "/hookshot-registration.yml"
-        # "/matrix-mautrix-signal-registration.yaml"
-        # "/matrix-mautrix-telegram-registration.yaml"
-      ];
-    };
-
-    withJemalloc = true;
-
-    extraConfigFiles = [
-      "/run/agenix/matrix-synapse-secret-config.yaml"
-
-      # The registration file is automatically generated after starting the
-      # appservice for the first time.
-      # cp /var/lib/mautrix-telegram/telegram-registration.yaml \
-      #   /var/lib/matrix-synapse/
-      # chown matrix-synapse:matrix-synapse \
-      #   /var/lib/matrix-synapse/telegram-registration.yaml
-      "/var/lib/matrix-synapse/telegram-registration.yaml"
-    ];
-
-    extras = [
-      "oidc"
-      "redis"
-    ];
-
-    plugins = [
-      config.services.matrix-synapse.package.plugins.matrix-synapse-shared-secret-auth
-    ];
-
-    sliding-sync = {
-      enable = true;
-      settings = {
-        SYNCV3_SERVER = "https://${publicDomain}";
-        SYNCV3_BINDADDR = "127.0.0.1:8011";
-        # The bind addr for Prometheus metrics, which will be accessible at
-        # /metrics at this address
-        SYNCV3_PROM = "127.0.0.1:9100";
-      };
-      environmentFile = config.age.secrets."matrix-synapse-sliding-sync-secret".path;
-    };
-  };
-
-  services.restic.backups.matrix-synapse-storagebox = {
-    paths = [
-      "/var/lib/matrix-synapse"
-      "/var/lib/matrix-appservice-irc"
-      "/var/lib/mautrix-telegram"
-      "/tmp/matrix-synapse-backup.sql"
-    ];
-    timerConfig = {
-      OnCalendar = "*-*-* 05:00:00 Etc/UTC";
-    };
-    initialize = true;
-    passwordFile = config.age.secrets."restic-repo-storagebox".path;
-    repository = "sftp:u377325@u377325.your-storagebox.de:/backups";
-    backupPrepareCommand = ''
-      ${pkgs.sudo}/bin/sudo -u postgres ${pkgs.postgresql}/bin/pg_dump -d matrix > /tmp/matrix-synapse-backup.sql
-    '';
-    backupCleanupCommand = ''
-      rm /tmp/matrix-synapse-backup.sql
-    '';
-    pruneOpts = [
-      "--keep-daily 7"
-      "--keep-weekly 4"
-      "--keep-monthly 3"
-    ];
-  };
-}

hosts/nachtigall/apps/nginx-prometheus-exporters.nix

@@ -1,32 +0,0 @@
-{ config, flake, lib, ... }:
-let
-  # Find element in list config.services.matrix-synapse.settings.listeners
-  # that sets type = "metrics"
-  listenerWithMetrics = lib.findFirst
-    (listener:
-      listener.type == "metrics")
-    (throw "Found no matrix-synapse.settings.listeners.*.type containing string metrics")
-    config.services.matrix-synapse.settings.listeners
-  ;
-  synapseMetricsPort = "${toString listenerWithMetrics.port}";
-in
-{
-  age.secrets.nachtigall-metrics-nginx-basic-auth = {
-    file = "${flake.self}/secrets/nachtigall-metrics-nginx-basic-auth.age";
-    mode = "600";
-    owner = "nginx";
-  };
-  services.nginx.virtualHosts = {
-    "nachtigall.pub.solar" = {
-      enableACME = true;
-      addSSL = true;
-      basicAuthFile = "${config.age.secrets.nachtigall-metrics-nginx-basic-auth.path}";
-      locations."/metrics" = {
-        proxyPass = "http://127.0.0.1:${toString(config.services.prometheus.exporters.node.port)}";
-      };
-      locations."/_synapse/metrics" = {
-        proxyPass = "http://127.0.0.1:${synapseMetricsPort}";
-      };
-    };
-  };
-}

hosts/nachtigall/apps/postgresql.nix

@@ -1,17 +0,0 @@
-{ ... }:
-
-{
-  services.postgresql = {
-    enable = true;
-    enableTCPIP = true;
-  };
-
-  systemd.services.postgresql = {
-    after = [
-      "var-lib-postgresql.mount"
-    ];
-    requisite = [
-      "var-lib-postgresql.mount"
-    ];
-  };
-}

hosts/nachtigall/apps/promtail.nix

@@ -1,46 +0,0 @@
-{ config
-, lib
-, pkgs
-, flake
-, ...
-}: {
-  age.secrets.nachtigall-metrics-prometheus-basic-auth-password = {
-    file = "${flake.self}/secrets/nachtigall-metrics-prometheus-basic-auth-password.age";
-    mode = "600";
-    owner = "promtail";
-  };
-
-  services.promtail = {
-    enable = true;
-    configuration = {
-      server = {
-        http_listen_port = 9080;
-        grpc_listen_port = 0;
-      };
-      positions = {
-        filename = "/tmp/positions.yaml";
-      };
-      clients = [{
-        url = "https://flora-6.pub.solar/loki/api/v1/push";
-        basic_auth = {
-          username = "hakkonaut";
-          password_file = "${config.age.secrets.nachtigall-metrics-prometheus-basic-auth-password.path}";
-        };
-      }];
-      scrape_configs = [{
-        job_name = "journal";
-        journal = {
-          max_age = "24h";
-          labels = {
-            job = "systemd-journal";
-            host = "nachtigall";
-          };
-        };
-        relabel_configs = [{
-          source_labels = [ "__journal__systemd_unit" ];
-          target_label = "unit";
-        }];
-      }];
-    };
-  };
-}

hosts/nachtigall/backups.nix

@@ -1,12 +1,34 @@
-{ flake, ... }: {
+{ config, flake, ... }:
+{
   age.secrets."restic-repo-droppie" = {
     file = "${flake.self}/secrets/restic-repo-droppie.age";
     mode = "400";
     owner = "root";
   };
-  age.secrets."restic-repo-storagebox" = {
-    file = "${flake.self}/secrets/restic-repo-storagebox.age";
+  age.secrets."restic-repo-storagebox-nachtigall" = {
+    file = "${flake.self}/secrets/restic-repo-storagebox-nachtigall.age";
     mode = "400";
     owner = "root";
   };
+  age.secrets.restic-repo-garage-nachtigall = {
+    file = "${flake.self}/secrets/restic-repo-garage-nachtigall.age";
+    mode = "400";
+    owner = "root";
+  };
+  age.secrets.restic-repo-garage-nachtigall-env = {
+    file = "${flake.self}/secrets/restic-repo-garage-nachtigall-env.age";
+    mode = "400";
+    owner = "root";
+  };
+
+  pub-solar-os.backups.repos.storagebox = {
+    passwordFile = config.age.secrets."restic-repo-storagebox-nachtigall".path;
+    repository = "sftp:u377325@u377325.your-storagebox.de:/backups";
+  };
+
+  pub-solar-os.backups.repos.garage = {
+    passwordFile = config.age.secrets."restic-repo-garage-nachtigall".path;
+    environmentFile = config.age.secrets."restic-repo-garage-nachtigall-env".path;
+    repository = "s3:https://buckets.pub.solar/nachtigall-backups";
+  };
 }

hosts/nachtigall/configuration.nix

@@ -1,8 +1,10 @@
-{ flake
-, config
-, pkgs
-, ...
-}: {
+{
+  flake,
+  config,
+  pkgs,
+  ...
+}:
+{
   # Use GRUB2 as the boot loader.
   # We don't use systemd-boot because Hetzner uses BIOS legacy boot.
   boot.loader.systemd-boot.enable = false;
@@ -11,15 +13,11 @@
     efiSupport = false;
     mirroredBoots = [
       {
-        devices = [
-          "/dev/disk/by-id/nvme-SAMSUNG_MZVL21T0HCLR-00B00_S676NF0R517371"
-        ];
+        devices = [ "/dev/disk/by-id/nvme-SAMSUNG_MZVL21T0HCLR-00B00_S676NF0R517371" ];
         path = "/boot1";
       }
       {
-        devices = [
-          "/dev/disk/by-id/nvme-KXG60ZNV1T02_TOSHIBA_Z9NF704ZF9ZL"
-        ];
+        devices = [ "/dev/disk/by-id/nvme-KXG60ZNV1T02_TOSHIBA_Z9NF704ZF9ZL" ];
         path = "/boot2";
       }
     ];
@@ -37,6 +35,11 @@
   # https://nixos.wiki/wiki/ZFS#declarative_mounting_of_ZFS_datasets
   systemd.services.zfs-mount.enable = false;
 
+  services.zfs.autoScrub = {
+    enable = true;
+    pools = [ "root_pool" ];
+  };
+
   # Declarative SSH private key
   age.secrets."nachtigall-root-ssh-key" = {
     file = "${flake.self}/secrets/nachtigall-root-ssh-key.age";
@@ -45,6 +48,78 @@
     owner = "root";
   };
 
+  # keycloak
+  age.secrets.keycloak-database-password = {
+    file = "${flake.self}/secrets/keycloak-database-password.age";
+    mode = "600";
+    #owner = "keycloak";
+  };
+
+  pub-solar-os.auth = {
+    enable = true;
+    database-password-file = config.age.secrets.keycloak-database-password.path;
+  };
+
+  # matrix-synapse
+  age.secrets."matrix-synapse-signing-key" = {
+    file = "${flake.self}/secrets/matrix-synapse-signing-key.age";
+    mode = "400";
+    owner = "matrix-synapse";
+  };
+
+  age.secrets."matrix-synapse-secret-config.yaml" = {
+    file = "${flake.self}/secrets/matrix-synapse-secret-config.yaml.age";
+    mode = "400";
+    owner = "matrix-synapse";
+  };
+
+  age.secrets."matrix-synapse-sliding-sync-secret" = {
+    file = "${flake.self}/secrets/matrix-synapse-sliding-sync-secret.age";
+    mode = "400";
+    owner = "matrix-synapse";
+  };
+
+  age.secrets."matrix-authentication-service-secret-config.yml" = {
+    file = "${flake.self}/secrets/matrix-authentication-service-secret-config.yml.age";
+    mode = "400";
+    owner = "matrix-authentication-service";
+  };
+
+  pub-solar-os.matrix = {
+    enable = true;
+    synapse = {
+      sliding-sync.enable = false;
+      signing_key_path = config.age.secrets."matrix-synapse-signing-key".path;
+      extra-config-files = [
+        config.age.secrets."matrix-synapse-secret-config.yaml".path
+
+        # The registration file is automatically generated after starting the
+        # appservice for the first time.
+        # cp /var/lib/mautrix-telegram/telegram-registration.yaml \
+        #   /var/lib/matrix-synapse/
+        # chown matrix-synapse:matrix-synapse \
+        #   /var/lib/matrix-synapse/telegram-registration.yaml
+        "/var/lib/matrix-synapse/telegram-registration.yaml"
+      ];
+      app-service-config-files = [
+        "/var/lib/matrix-synapse/telegram-registration.yaml"
+        "/var/lib/matrix-appservice-irc/registration.yml"
+        # "/matrix-appservice-slack-registration.yaml"
+        # "/hookshot-registration.yml"
+        # "/matrix-mautrix-signal-registration.yaml"
+        # "/matrix-mautrix-telegram-registration.yaml"
+      ];
+    };
+    matrix-authentication-service.extra-config-files = [
+      config.age.secrets."matrix-authentication-service-secret-config.yml".path
+    ];
+  };
+
+  systemd.services.postgresql = {
+    after = [ "var-lib-postgresql.mount" ];
+    requisite = [ "var-lib-postgresql.mount" ];
+  };
+
   # This value determines the NixOS release with which your system is to be
   # compatible, in order to avoid breaking some software such as database
   # servers. You should change this only after NixOS release notes say you

hosts/nachtigall/default.nix

@@ -1,41 +1,20 @@
 { flake, ... }:
 
 {
-  imports =
-    [
-      # Include the results of the hardware scan.
-      ./hardware-configuration.nix
-      ./configuration.nix
+  imports = [
+    # Include the results of the hardware scan.
+    ./hardware-configuration.nix
+    ./configuration.nix
 
-      ./networking.nix
-      ./wireguard.nix
-      ./backups.nix
-      ./apps/nginx.nix
+    ./networking.nix
+    ./wireguard.nix
+    ./backups.nix
+    "${flake.inputs.fork}/nixos/modules/services//matrix/matrix-authentication-service.nix"
+    "${flake.inputs.unstable}/nixos/modules/services/web-apps/mastodon.nix"
+  ];
 
-      ./apps/collabora.nix
-      ./apps/coturn.nix
-      ./apps/forgejo.nix
-      ./apps/keycloak.nix
-      ./apps/mailman.nix
-      ./apps/mastodon.nix
-      ./apps/mediawiki.nix
-      ./apps/nextcloud.nix
-      ./apps/nginx-mastodon.nix
-      ./apps/nginx-mastodon-files.nix
-      ./apps/nginx-prometheus-exporters.nix
-      ./apps/nginx-website.nix
-      ./apps/nginx-website-miom.nix
-      ./apps/opensearch.nix
-      ./apps/owncast.nix
-      ./apps/postgresql.nix
-      ./apps/prometheus-exporters.nix
-      ./apps/promtail.nix
-      ./apps/searx.nix
-      ./apps/tmate.nix
-
-      ./apps/matrix/irc.nix
-      ./apps/matrix/mautrix-telegram.nix
-      ./apps/matrix/synapse.nix
-      ./apps/nginx-matrix.nix
-    ];
+  disabledModules = [
+    "services/matrix/matrix-authentication-service.nix "
+    "services/web-apps/mastodon.nix"
+  ];
 }

hosts/nachtigall/hardware-configuration.nix

@@ -1,54 +1,54 @@
 # Do not modify this file!  It was generated by ‘nixos-generate-config’
 # and may be overwritten by future invocations.  Please make changes
 # to /etc/nixos/configuration.nix instead.
-{ config, lib, pkgs, modulesPath, ... }:
+{
+  config,
+  lib,
+  pkgs,
+  modulesPath,
+  ...
+}:
 
 {
-  imports =
-    [
-      (modulesPath + "/installer/scan/not-detected.nix")
-    ];
+  imports = [ (modulesPath + "/installer/scan/not-detected.nix") ];
 
-  boot.initrd.availableKernelModules = [ "ahci" "nvme" ];
+  boot.initrd.availableKernelModules = [
+    "ahci"
+    "nvme"
+  ];
   boot.initrd.kernelModules = [ ];
   boot.kernelModules = [ "kvm-amd" ];
   boot.extraModulePackages = [ ];
 
-  fileSystems."/" =
-    {
-      device = "root_pool/root";
-      fsType = "zfs";
-    };
+  fileSystems."/" = {
+    device = "root_pool/root";
+    fsType = "zfs";
+  };
 
-  fileSystems."/var/lib" =
-    {
-      device = "root_pool/data";
-      fsType = "zfs";
-    };
+  fileSystems."/var/lib" = {
+    device = "root_pool/data";
+    fsType = "zfs";
+  };
 
-  fileSystems."/var/lib/postgresql" =
-    {
-      device = "root_pool/data/postgresql";
-      fsType = "zfs";
-    };
+  fileSystems."/var/lib/postgresql" = {
+    device = "root_pool/data/postgresql";
+    fsType = "zfs";
+  };
 
-  fileSystems."/var/lib/docker" =
-    {
-      device = "root_pool/data/docker";
-      fsType = "zfs";
-    };
+  fileSystems."/var/lib/docker" = {
+    device = "root_pool/data/docker";
+    fsType = "zfs";
+  };
 
-  fileSystems."/boot1" =
-    {
-      device = "/dev/disk/by-uuid/5493-EFF5";
-      fsType = "vfat";
-    };
+  fileSystems."/boot1" = {
+    device = "/dev/disk/by-uuid/5493-EFF5";
+    fsType = "vfat";
+  };
 
-  fileSystems."/boot2" =
-    {
-      device = "/dev/disk/by-uuid/5494-BA1E";
-      fsType = "vfat";
-    };
+  fileSystems."/boot2" = {
+    device = "/dev/disk/by-uuid/5494-BA1E";
+    fsType = "vfat";
+  };
 
   swapDevices = [ ];
 

hosts/nachtigall/networking.nix

@@ -2,11 +2,11 @@
   config,
   pkgs,
   flake,
-  ... }:
+  ...
+}:
 {
 
   networking.hostName = "nachtigall";
-  networking.domain = "pub.solar";
   networking.hostId = "00000001";
 
   # Network (Hetzner uses static IP assignments, and we don't use DHCP here)
@@ -24,5 +24,8 @@
     }
   ];
   networking.defaultGateway = "138.201.80.65";
-  networking.defaultGateway6 = { address = "fe80::1"; interface = "enp35s0"; };
+  networking.defaultGateway6 = {
+    address = "fe80::1";
+    interface = "enp35s0";
+  };
 }

hosts/nachtigall/wireguard.nix

@@ -2,7 +2,8 @@
   config,
   pkgs,
   flake,
-  ... }:
+  ...
+}:
 {
   networking.firewall.allowedUDPPorts = [ 51820 ];
 
@@ -17,17 +18,32 @@
         "fd00:fae:fae:fae:fae:1::/96"
       ];
       privateKeyFile = config.age.secrets.wg-private-key.path;
-      peers = flake.self.logins.admins.wireguardDevices ++ [
-        { # flora-6.pub.solar
-          endpoint = "80.71.153.210:51820";
-          publicKey = "jtSR5G2P/nm9s8WrVc26Xc/SQLupRxyXE+5eIeqlsTU=";
-          allowedIPs = [ "10.7.6.2/32" "fd00:fae:fae:fae:fae:2::/96" ];
+      peers = flake.self.logins.wireguardDevices ++ [
+        {
+          # tankstelle.pub.solar
+          endpoint = "80.244.242.5:51820";
+          publicKey = "iRTlY1lB7nPXf2eXzX8ZZDkfMmXyGjff5/joccbP8Cg=";
+          allowedIPs = [
+            "10.7.6.4/32"
+            "fd00:fae:fae:fae:fae:4::/96"
+          ];
+        }
+        {
+          # trinkgenossin.pub.solar
+          publicKey = "QWgHovHxtqiQhnHLouSWiT6GIoQDmuvnThYL5c/rvU4=";
+          allowedIPs = [
+            "10.7.6.5/32"
+            "fd00:fae:fae:fae:fae:5::/96"
+          ];
+          #endpoint = "85.215.152.22:51820";
+          endpoint = "[2a01:239:35d:f500::1]:51820";
+          persistentKeepalive = 15;
         }
       ];
     };
   };
 
-  services.openssh.listenAddresses = [ 
+  services.openssh.listenAddresses = [
     {
       addr = "10.7.6.1";
       port = 22;

hosts/tankstelle/backups.nix

@@ -0,0 +1,13 @@
+{ flake, ... }:
+{
+  age.secrets."restic-repo-droppie" = {
+    file = "${flake.self}/secrets/restic-repo-droppie.age";
+    mode = "400";
+    owner = "root";
+  };
+  age.secrets."restic-repo-storagebox-tankstelle" = {
+    file = "${flake.self}/secrets/restic-repo-storagebox-tankstelle.age";
+    mode = "400";
+    owner = "root";
+  };
+}

hosts/tankstelle/configuration.nix

@@ -0,0 +1,16 @@
+{
+  flake,
+  config,
+  pkgs,
+  ...
+}:
+{
+  imports = [ ./hardware-configuration.nix ];
+
+  boot.loader.systemd-boot.enable = true;
+  boot.loader.efi.canTouchEfiVariables = true;
+
+  boot.binfmt.emulatedSystems = [ "aarch64-linux" ];
+
+  system.stateVersion = "23.11";
+}

hosts/tankstelle/default.nix

@@ -0,0 +1,13 @@
+{ flake, ... }:
+
+{
+  imports = [
+    ./hardware-configuration.nix
+    ./configuration.nix
+
+    ./networking.nix
+    ./forgejo-actions-runner.nix
+    ./wireguard.nix
+    #./backups.nix
+  ];
+}

hosts/tankstelle/forgejo-actions-runner.nix

@@ -0,0 +1,62 @@
+{
+  config,
+  lib,
+  pkgs,
+  flake,
+  ...
+}:
+{
+  age.secrets.tankstelle-forgejo-actions-runner-token = {
+    file = "${flake.self}/secrets/tankstelle-forgejo-actions-runner-token.age";
+    mode = "440";
+  };
+
+  # Trust docker bridge interface traffic
+  # Needed for the docker runner to communicate with the act_runner cache
+  networking.firewall.trustedInterfaces = [ "br-+" ];
+
+  users.users.gitea-runner = {
+    home = "/var/lib/gitea-runner/tankstelle";
+    useDefaultShell = true;
+    group = "gitea-runner";
+    # Required to interact with nix daemon
+    extraGroups = [ "wheel" ];
+    isSystemUser = true;
+  };
+
+  users.groups.gitea-runner = { };
+
+  systemd.tmpfiles.rules = [ "d '/var/lib/gitea-runner' 0750 gitea-runner gitea-runner - -" ];
+
+  systemd.services."gitea-runner-tankstelle" = {
+    serviceConfig.DynamicUser = lib.mkForce false;
+    path = with pkgs; [
+      coreutils
+      bash
+      coreutils
+      curl
+      gawk
+      gitMinimal
+      gnused
+      nodejs
+      wget
+      cachix
+      jq
+      nix
+    ];
+  };
+
+  # forgejo actions runner
+  # https://forgejo.org/docs/latest/admin/actions/
+  # https://docs.gitea.com/usage/actions/quickstart
+  services.gitea-actions-runner = {
+    package = pkgs.forgejo-runner;
+    instances."tankstelle" = {
+      enable = true;
+      name = config.networking.hostName;
+      url = "https://git.pub.solar";
+      tokenFile = config.age.secrets.tankstelle-forgejo-actions-runner-token.path;
+      labels = [ "self-hosted:host://-self-hosted" ];
+    };
+  };
+}

hosts/tankstelle/hardware-configuration.nix

@@ -0,0 +1,41 @@
+# Do not modify this file!  It was generated by ‘nixos-generate-config’
+# and may be overwritten by future invocations.  Please make changes
+# to /etc/nixos/configuration.nix instead.
+{
+  config,
+  lib,
+  pkgs,
+  modulesPath,
+  ...
+}:
+
+{
+  imports = [ (modulesPath + "/profiles/qemu-guest.nix") ];
+
+  boot.initrd.availableKernelModules = [
+    "ahci"
+    "xhci_pci"
+    "virtio_pci"
+    "sr_mod"
+    "virtio_blk"
+  ];
+  boot.initrd.kernelModules = [ ];
+  boot.kernelModules = [ "kvm-intel" ];
+  boot.extraModulePackages = [ ];
+
+  fileSystems."/" = {
+    device = "/dev/disk/by-uuid/17531ffc-46bd-4259-8287-2dea73804b5b";
+    fsType = "ext4";
+  };
+
+  fileSystems."/boot" = {
+    device = "/dev/disk/by-uuid/AF98-AA5C";
+    fsType = "vfat";
+  };
+
+  swapDevices = [ { device = "/dev/disk/by-uuid/7aee04b5-1ef9-43de-acb4-70ac1238b58a"; } ];
+
+  nixpkgs.hostPlatform = lib.mkDefault "x86_64-linux";
+  powerManagement.cpuFreqGovernor = lib.mkDefault "ondemand";
+  hardware.cpu.amd.updateMicrocode = lib.mkDefault config.hardware.enableRedistributableFirmware;
+}

hosts/tankstelle/networking.nix

@@ -0,0 +1,38 @@
+{
+  config,
+  pkgs,
+  flake,
+  ...
+}:
+{
+  networking = {
+    hostName = "tankstelle";
+    enableIPv6 = true;
+    defaultGateway = {
+      address = "80.244.242.1";
+      interface = "enp1s0";
+    };
+    defaultGateway6 = {
+      address = "2001:4d88:1ffa:26::1";
+      interface = "enp1s0";
+    };
+    nameservers = [
+      "95.129.51.51"
+      "80.244.244.244"
+    ];
+    interfaces."enp1s0" = {
+      ipv4.addresses = [
+        {
+          address = "80.244.242.5";
+          prefixLength = 29;
+        }
+      ];
+      ipv6.addresses = [
+        {
+          address = "2001:4d88:1ffa:26::5";
+          prefixLength = 64;
+        }
+      ];
+    };
+  };
+}

hosts/tankstelle/wireguard.nix

@@ -0,0 +1,56 @@
+{
+  config,
+  pkgs,
+  flake,
+  ...
+}:
+{
+  networking.firewall.allowedUDPPorts = [ 51820 ];
+
+  age.secrets.wg-private-key.file = "${flake.self}/secrets/tankstelle-wg-private-key.age";
+
+  networking.wireguard.interfaces = {
+    wg-ssh = {
+      listenPort = 51820;
+      mtu = 1300;
+      ips = [
+        "10.7.6.4/32"
+        "fd00:fae:fae:fae:fae:4::/96"
+      ];
+      privateKeyFile = config.age.secrets.wg-private-key.path;
+      peers = flake.self.logins.wireguardDevices ++ [
+        {
+          # nachtigall.pub.solar
+          endpoint = "138.201.80.102:51820";
+          publicKey = "qzNywKY9RvqTnDO8eLik75/SHveaSk9OObilDzv+xkk=";
+          allowedIPs = [
+            "10.7.6.1/32"
+            "fd00:fae:fae:fae:fae:1::/96"
+          ];
+        }
+        {
+          # trinkgenossin.pub.solar
+          publicKey = "QWgHovHxtqiQhnHLouSWiT6GIoQDmuvnThYL5c/rvU4=";
+          allowedIPs = [
+            "10.7.6.5/32"
+            "fd00:fae:fae:fae:fae:5::/96"
+          ];
+          #endpoint = "85.215.152.22:51820";
+          endpoint = "[2a01:239:35d:f500::1]:51820";
+          persistentKeepalive = 15;
+        }
+      ];
+    };
+  };
+
+  services.openssh.listenAddresses = [
+    {
+      addr = "10.7.6.4";
+      port = 22;
+    }
+    {
+      addr = "[fd00:fae:fae:fae:fae:4::]";
+      port = 22;
+    }
+  ];
+}

hosts/trinkgenossin/configuration.nix

@@ -0,0 +1,35 @@
+{
+  flake,
+  config,
+  lib,
+  pkgs,
+  ...
+}:
+{
+  boot.loader.grub.enable = true;
+  boot.loader.grub.devices = [ "/dev/vda" ];
+
+  boot.kernelParams = [
+    "boot.shell_on_fail=1"
+    "ip=dhcp"
+  ];
+
+  # This option defines the first version of NixOS you have installed on this particular machine,
+  # and is used to maintain compatibility with application data (e.g. databases) created on older NixOS versions.
+  #
+  # Most users should NEVER change this value after the initial install, for any reason,
+  # even if you've upgraded your system to a new NixOS release.
+  #
+  # This value does NOT affect the Nixpkgs version your packages and OS are pulled from,
+  # so changing it will NOT upgrade your system - see https://nixos.org/manual/nixos/stable/#sec-upgrading for how
+  # to actually do that.
+  #
+  # This value being lower than the current NixOS release does NOT mean your system is
+  # out of date, out of support, or vulnerable.
+  #
+  # Do NOT change this value unless you have manually inspected all the changes it would make to your configuration,
+  # and migrated your data accordingly.
+  #
+  # For more information, see `man configuration.nix` or https://nixos.org/manual/nixos/stable/options#opt-system.stateVersion .
+  system.stateVersion = "24.05"; # Did you read the comment?
+}

hosts/trinkgenossin/default.nix

@@ -0,0 +1,12 @@
+{ flake, ... }:
+
+{
+  imports = [
+    ./hardware-configuration.nix
+    ./configuration.nix
+
+    ./networking.nix
+    ./wireguard.nix
+    #./backups.nix
+  ];
+}

hosts/trinkgenossin/hardware-configuration.nix

@@ -0,0 +1,54 @@
+# Do not modify this file!  It was generated by ‘nixos-generate-config’
+# and may be overwritten by future invocations.  Please make changes
+# to /etc/nixos/configuration.nix instead.
+{
+  config,
+  lib,
+  pkgs,
+  modulesPath,
+  ...
+}:
+
+{
+  imports = [ ];
+
+  boot.initrd.availableKernelModules = [
+    "ata_piix"
+    "uhci_hcd"
+    "virtio_pci"
+    "sr_mod"
+    "virtio_blk"
+    "virtio_net"
+  ];
+  boot.initrd.kernelModules = [ "dm-snapshot" ];
+  boot.kernelModules = [ "kvm-amd" ];
+  boot.extraModulePackages = [ ];
+
+  boot.initrd.luks.devices."cryptroot" = {
+    device = "/dev/disk/by-uuid/52a1fd17-63d7-4d0a-b7ff-74aceaf6085a";
+  };
+
+  fileSystems."/" = {
+    device = "/dev/disk/by-label/nixos";
+    fsType = "ext4";
+  };
+
+  fileSystems."/boot" = {
+    device = "/dev/disk/by-label/boot";
+    fsType = "ext4";
+  };
+
+  fileSystems."/var/lib/garage/data" = {
+    device = "/dev/disk/by-label/data";
+    fsType = "xfs";
+  };
+
+  fileSystems."/var/lib/garage/meta" = {
+    device = "/dev/disk/by-label/metadata";
+    fsType = "btrfs";
+  };
+
+  swapDevices = [ { device = "/dev/disk/by-label/swap"; } ];
+
+  nixpkgs.hostPlatform = lib.mkDefault "x86_64-linux";
+}

hosts/trinkgenossin/networking.nix

@@ -0,0 +1,15 @@
+{
+  config,
+  pkgs,
+  flake,
+  ...
+}:
+{
+  services.garage.settings.rpc_public_addr = "[2a01:239:35d:f500::1]:3901";
+
+  networking.hostName = "trinkgenossin";
+  networking.hostId = "00000003";
+
+  networking.enableIPv6 = true;
+  networking.useDHCP = true;
+}

hosts/trinkgenossin/wireguard.nix

@@ -0,0 +1,86 @@
+{
+  config,
+  pkgs,
+  flake,
+  ...
+}:
+let
+  wireguardIPv4 = "10.7.6.5";
+  wireguardIPv6 = "fd00:fae:fae:fae:fae:5::";
+in
+{
+  networking.firewall.allowedUDPPorts = [ 51820 ];
+
+  age.secrets.wg-private-key.file = "${flake.self}/secrets/trinkgenossin-wg-private-key.age";
+
+  networking.wireguard.interfaces = {
+    wg-ssh = {
+      listenPort = 51820;
+      mtu = 1300;
+      ips = [
+        "${wireguardIPv4}/32"
+        "${wireguardIPv6}/96"
+      ];
+      privateKeyFile = config.age.secrets.wg-private-key.path;
+      peers = flake.self.logins.wireguardDevices ++ [
+        {
+          # nachtigall.pub.solar
+          endpoint = "138.201.80.102:51820";
+          publicKey = "qzNywKY9RvqTnDO8eLik75/SHveaSk9OObilDzv+xkk=";
+          allowedIPs = [
+            "10.7.6.1/32"
+            "fd00:fae:fae:fae:fae:1::/96"
+          ];
+        }
+        {
+          # metronom.pub.solar
+          endpoint = "49.13.236.167:51820";
+          publicKey = "zOSYGO7MfnOOUnzaTcWiKRQM0qqxR3JQrwx/gtEtHmo=";
+          allowedIPs = [
+            "10.7.6.3/32"
+            "fd00:fae:fae:fae:fae:3::/96"
+          ];
+          persistentKeepalive = 15;
+        }
+        {
+          # tankstelle.pub.solar
+          endpoint = "80.244.242.5:51820";
+          publicKey = "iRTlY1lB7nPXf2eXzX8ZZDkfMmXyGjff5/joccbP8Cg=";
+          allowedIPs = [
+            "10.7.6.4/32"
+            "fd00:fae:fae:fae:fae:4::/96"
+          ];
+        }
+        {
+          # delite.pub.solar
+          endpoint = "5.255.119.132:51820";
+          publicKey = "ZT2qGWgMPwHRUOZmTQHWCRX4m14YwOsiszjsA5bpc2k=";
+          allowedIPs = [
+            "10.7.6.6/32"
+            "fd00:fae:fae:fae:fae:6::/96"
+          ];
+        }
+        {
+          # blue-shell.pub.solar
+          endpoint = "194.13.83.205:51820";
+          publicKey = "bcrIpWrKc1M+Hq4ds3aN1lTaKE26f2rvXhd+93QrzR8=";
+          allowedIPs = [
+            "10.7.6.7/32"
+            "fd00:fae:fae:fae:fae:7::/96"
+          ];
+        }
+      ];
+    };
+  };
+
+  services.openssh.listenAddresses = [
+    {
+      addr = wireguardIPv4;
+      port = 22;
+    }
+    {
+      addr = "[${wireguardIPv6}]";
+      port = 22;
+    }
+  ];
+}

hosts/underground/configuration.nix

@@ -0,0 +1,72 @@
+{
+  flake,
+  config,
+  pkgs,
+  ...
+}:
+{
+  # Use GRUB2 as the boot loader.
+  boot.loader.grub = {
+    enable = true;
+    devices = [ "/dev/vda" ];
+  };
+
+  pub-solar-os.networking.domain = "test.pub.solar";
+
+  systemd.tmpfiles.rules = [ "f /tmp/dbf 1777 root root 10d password" ];
+
+  # keycloak
+  pub-solar-os.auth = {
+    enable = true;
+    database-password-file = "/tmp/dbf";
+  };
+  services.keycloak.database.createLocally = true;
+
+  # matrix-synapse
+  # test.pub.solar /.well-known is required for federation
+  services.nginx.virtualHosts."${config.pub-solar-os.networking.domain}" = {
+    default = true;
+    enableACME = true;
+    forceSSL = true;
+  };
+
+  age.secrets."staging-matrix-synapse-secret-config.yaml" = {
+    file = "${flake.self}/secrets/staging-matrix-synapse-secret-config.yaml.age";
+    mode = "400";
+    owner = "matrix-synapse";
+  };
+
+  age.secrets."staging-matrix-authentication-service-secret-config.yml" = {
+    file = "${flake.self}/secrets/staging-matrix-authentication-service-secret-config.yml.age";
+    mode = "400";
+    owner = "matrix-authentication-service";
+  };
+
+  pub-solar-os.matrix = {
+    enable = true;
+    synapse = {
+      extra-config-files = [
+        config.age.secrets."staging-matrix-synapse-secret-config.yaml".path
+
+        # The registration file is automatically generated after starting the
+        # appservice for the first time.
+        # cp /var/lib/mautrix-telegram/telegram-registration.yaml \
+        #   /var/lib/matrix-synapse/
+        # chown matrix-synapse:matrix-synapse \
+        #   /var/lib/matrix-synapse/telegram-registration.yaml
+        #"/var/lib/matrix-synapse/telegram-registration.yaml"
+      ];
+      app-service-config-files = [
+        "/var/lib/matrix-appservice-irc/registration.yml"
+        #"/var/lib/matrix-synapse/telegram-registration.yaml"
+      ];
+    };
+    matrix-authentication-service.extra-config-files = [
+      config.age.secrets."staging-matrix-authentication-service-secret-config.yml".path
+    ];
+  };
+
+  services.openssh.openFirewall = true;
+
+  system.stateVersion = "24.05";
+}

hosts/underground/default.nix

@@ -0,0 +1,16 @@
+{ flake, ... }:
+
+{
+  imports = [
+    # Include the results of the hardware scan.
+    ./hardware-configuration.nix
+    ./configuration.nix
+
+    ./networking.nix
+    "${flake.inputs.fork}/nixos/modules/services//matrix/matrix-authentication-service.nix"
+  ];
+
+  disabledModules = [
+    "services/matrix/matrix-authentication-service.nix "
+  ];
+}

hosts/underground/hardware-configuration.nix

@@ -0,0 +1,47 @@
+# Do not modify this file!  It was generated by ‘nixos-generate-config’
+# and may be overwritten by future invocations.  Please make changes
+# to /etc/nixos/configuration.nix instead.
+{
+  config,
+  lib,
+  pkgs,
+  modulesPath,
+  ...
+}:
+
+{
+  imports = [
+    (modulesPath + "/profiles/qemu-guest.nix")
+  ];
+
+  boot.initrd.availableKernelModules = [
+    "ahci"
+    "xhci_pci"
+    "virtio_pci"
+    "virtio_scsi"
+    "sd_mod"
+    "sr_mod"
+  ];
+  boot.kernelModules = [ "kvm-intel" ];
+  boot.extraModulePackages = [ ];
+
+  boot.initrd.luks.devices."cryptroot" = {
+    device = "/dev/disk/by-label/cryptroot";
+  };
+
+  fileSystems."/" = {
+    device = "/dev/disk/by-label/root";
+    fsType = "ext4";
+  };
+
+  fileSystems."/boot" = {
+    device = "/dev/disk/by-label/boot";
+    fsType = "ext4";
+  };
+
+  swapDevices = [
+    { device = "/dev/disk/by-label/swap"; }
+  ];
+
+  nixpkgs.hostPlatform = lib.mkDefault "x86_64-linux";
+}

hosts/underground/networking.nix

@@ -0,0 +1,30 @@
+{
+  config,
+  pkgs,
+  flake,
+  ...
+}:
+{
+
+  networking.hostName = "underground";
+
+  networking = {
+    defaultGateway = {
+      address = "80.244.242.1";
+      interface = "enp1s0";
+    };
+    nameservers = [
+      "95.129.51.51"
+      "80.244.244.244"
+    ];
+    interfaces.enp1s0 = {
+      useDHCP = false;
+      ipv4.addresses = [
+        {
+          address = "80.244.242.3";
+          prefixLength = 29;
+        }
+      ];
+    };
+  };
+}

lib/compat/default.nix

@@ -1,16 +1,16 @@
 let
-  lock = builtins.fromJSON (builtins.readFile builtins.path {
-    path = ../../flake.lock;
-    name = "lockPath";
-  });
+  lock = builtins.fromJSON (
+    builtins.readFile builtins.path {
+      path = ../../flake.lock;
+      name = "lockPath";
+    }
+  );
   flake =
     import
-      (
-        fetchTarball {
-          url = "https://github.com/edolstra/flake-compat/archive/${lock.nodes.flake-compat.locked.rev}.tar.gz";
-          sha256 = lock.nodes.flake-compat.locked.narHash;
-        }
-      )
+      (fetchTarball {
+        url = "https://github.com/edolstra/flake-compat/archive/${lock.nodes.flake-compat.locked.rev}.tar.gz";
+        sha256 = lock.nodes.flake-compat.locked.narHash;
+      })
       {
         src = builtins.path {
           path = ../../.;

lib/default.nix

@@ -1,4 +1,10 @@
-{ self, lib, inputs, ... }: {
+{
+  self,
+  lib,
+  inputs,
+  ...
+}:
+{
   # Configuration common to all Linux systems
   flake = {
     lib =

lib/deploy.nix

@@ -1,75 +1,80 @@
 /*
- * The contents of this file are adapted from digga
- * https://github.com/divnix/digga
- *
- * Licensed under the MIT license
- */
+  The contents of this file are adapted from digga
+  https://github.com/divnix/digga
+
+  Licensed under the MIT license
+*/
 
 { lib, inputs }:
 let
-  # https://github.com/serokell/deploy-rs#overall-usage
-  system = "x86_64-linux";
-  pkgs = import inputs.nixpkgs { inherit system; };
-  deployPkgs = import inputs.nixpkgs {
-    inherit system;
-    overlays = [
-      inputs.deploy-rs.overlay
-      (self: super: { deploy-rs = { inherit (pkgs) deploy-rs; lib = super.deploy-rs.lib; }; })
-    ];
-  };
-  getFqdn = c:
+  getFqdn =
+    c:
     let
       net = c.config.networking;
       fqdn =
-        if (net ? domain) && (net.domain != null)
-        then "${net.hostName}.${net.domain}"
-        else net.hostName;
+        if (net ? domain) && (net.domain != null) then "${net.hostName}.${net.domain}" else net.hostName;
     in
     fqdn;
 in
 {
-  mkDeployNodes = systemConfigurations: extraConfig:
+  mkDeployNodes =
+    systemConfigurations: extraConfig:
     /*
-     *
-       Synopsis: mkNodes _systemConfigurations_ _extraConfig_
+      *
+        Synopsis: mkNodes _systemConfigurations_ _extraConfig_
 
-       Generate the `nodes` attribute expected by deploy-rs
-       where _systemConfigurations_ are `nodes`.
+        Generate the `nodes` attribute expected by deploy-rs
+        where _systemConfigurations_ are `nodes`.
 
-       _systemConfigurations_ should take the form of a flake's
-       _nixosConfigurations_. Note that deploy-rs does not currently support
-       deploying to darwin hosts.
+        _systemConfigurations_ should take the form of a flake's
+        _nixosConfigurations_. Note that deploy-rs does not currently support
+        deploying to darwin hosts.
 
-       _extraConfig_, if specified, will be merged into each of the
-       nodes' configurations.
+        _extraConfig_, if specified, will be merged into each of the
+        nodes' configurations.
 
-       Example _systemConfigurations_ input:
+        Example _systemConfigurations_ input:
 
-       ```
-       {
-       hostname-1 = {
-       fastConnection = true;
-       sshOpts = [ "-p" "25" ];
-       };
-       hostname-2 = {
-       sshOpts = [ "-p" "19999" ];
-       sshUser = "root";
-       };
-       }
-       ```
-     *
-     */
-    lib.recursiveUpdate
-      (lib.mapAttrs
-        (
-          _: c: {
-            hostname = getFqdn c;
-            profiles.system = {
-              user = "root";
-              path = deployPkgs.deploy-rs.lib.activate.nixos c;
-            };
-          }
-        )
-        systemConfigurations)
-      extraConfig;
+        ```
+        {
+        hostname-1 = {
+        fastConnection = true;
+        sshOpts = [ "-p" "25" ];
+        };
+        hostname-2 = {
+        sshOpts = [ "-p" "19999" ];
+        sshUser = "root";
+        };
+        }
+        ```
+      *
+    */
+    lib.recursiveUpdate (lib.mapAttrs (_: c: {
+      hostname = getFqdn c;
+      profiles.system =
+        let
+          system = c.pkgs.system;
+
+          # Unmodified nixpkgs
+          pkgs = import inputs.nixpkgs { inherit system; };
+
+          # nixpkgs with deploy-rs overlay but force the nixpkgs package
+          deployPkgs = import inputs.nixpkgs {
+            inherit system;
+            overlays = [
+              inputs.deploy-rs.overlay # or deploy-rs.overlays.default
+              (self: super: {
+                deploy-rs = {
+                  inherit (pkgs) deploy-rs;
+                  lib = super.deploy-rs.lib;
+                };
+              })
+            ];
+          };
+        in
+        {
+          user = "root";
+          path = deployPkgs.deploy-rs.lib.activate.nixos c;
+        };
+    }) systemConfigurations) extraConfig;
 }

logins/admins.nix

@@ -10,7 +10,10 @@
       {
         # tuxnix
         publicKey = "fTvULvdsc92binFaBV+uWwFi33bi8InShcaPnoxUZEA=";
-        allowedIPs = [ "10.7.6.203/32" "fd00:fae:fae:fae:fae:203::/96" ];
+        allowedIPs = [
+          "10.7.6.203/32"
+          "fd00:fae:fae:fae:fae:203::/96"
+        ];
       }
     ];
   };
@@ -27,9 +30,21 @@
     } // sshPubKeys;
 
     wireguardDevices = [
-      { # stroopwafel
+      {
+        # stroopwafel
         publicKey = "NNb7T8Jmn+V2dTZ8T6Fcq7hGomHGDckKoV3kK2oAhSE=";
-        allowedIPs = [ "10.7.6.200/32" "fd00:fae:fae:fae:fae:200::/96" ];
+        allowedIPs = [
+          "10.7.6.200/32"
+          "fd00:fae:fae:fae:fae:200::/96"
+        ];
+      }
+      {
+        # chocolatebar
+        publicKey = "AS9w0zDUFLcH6IiF6T1vsyZPWPJ3p5fKsjIsM2AoZz8=";
+        allowedIPs = [
+          "10.7.6.205/32"
+          "fd00:fae:fae:fae:fae:205::/96"
+        ];
       }
     ];
   };
@@ -42,9 +57,13 @@
 
     secretEncryptionKeys = sshPubKeys;
     wireguardDevices = [
-      { # judy
+      {
+        # judy
         publicKey = "I+gN7v1VXkAGoSir6L8aebtLbguvy5nAx1QVDTzdckk=";
-        allowedIPs = [ "10.7.6.202/32" "fd00:fae:fae:fae:fae:202::/96" ];
+        allowedIPs = [
+          "10.7.6.202/32"
+          "fd00:fae:fae:fae:fae:202::/96"
+        ];
       }
     ];
   };
@@ -52,20 +71,30 @@
   teutat3s = {
     sshPubKeys = {
       teutat3s-1 = "ecdsa-sha2-nistp256 AAAAE2VjZHNhLXNoYTItbmlzdHAyNTYAAAAIbmlzdHAyNTYAAABBBFro/k4Mgqyh8yV/7Zwjc0dv60ZM7bROBU9JNd99P/4co6fxPt1pJiU/pEz2Dax/HODxgcO+jFZfvPEuLMCeAl0= YubiKey #10593996 PIV Slot 9a";
+      teutat3s-2 = "ssh-ed25519 AAAAC3NzaC1lZDI1NTE5AAAAIHcU6KPy4b1MQXd6EJhcYwbJu7E+0IrBZF/IP6T7gbMf teutat3s@dumpyourvms";
     };
 
     secretEncryptionKeys = {
       teutat3s-1 = "ssh-ed25519 AAAAC3NzaC1lZDI1NTE5AAAAIHcU6KPy4b1MQXd6EJhcYwbJu7E+0IrBZF/IP6T7gbMf teutat3s@dumpyourvms";
+      teutat3s-2 = "ssh-ed25519 AAAAC3NzaC1lZDI1NTE5AAAAIPAsRdVYK0077cdtavmrRr6akrI68T1EDY4Hfv4+W86J teutat3s@ryzensun";
     };
 
     wireguardDevices = [
-      { # dumpyourvms
+      {
+        # dumpyourvms
         publicKey = "3UrVLQrwXnPAVXPiTAd7eM3fZYxnFSYgKAGpNMUwnUk=";
-        allowedIPs = [ "10.7.6.201/32" "fd00:fae:fae:fae:fae:201::/96" ];
+        allowedIPs = [
+          "10.7.6.201/32"
+          "fd00:fae:fae:fae:fae:201::/96"
+        ];
       }
-      { # ryzensun
+      {
+        # ryzensun
         publicKey = "oVF2/s7eIxyVjtG0MhKPx5SZ1JllZg+ZFVF2eVYtPGo=";
-        allowedIPs = [ "10.7.6.204/32" "fd00:fae:fae:fae:fae:204::/96" ];
+        allowedIPs = [
+          "10.7.6.204/32"
+          "fd00:fae:fae:fae:fae:204::/96"
+        ];
       }
     ];
   };

logins/default.nix

@@ -1,13 +1,21 @@
-{ lib, ... }: let
+{ lib, ... }:
+let
   admins = import ./admins.nix;
   robots = import ./robots.nix;
-in {
+in
+{
   flake = {
     logins = {
-      admins = lib.lists.foldl (logins: adminConfig: {
-        sshPubKeys = logins.sshPubKeys ++ (lib.attrsets.attrValues adminConfig.sshPubKeys);
-        wireguardDevices = logins.wireguardDevices ++ (if adminConfig ? "wireguardDevices" then adminConfig.wireguardDevices else []);
-      }) { sshPubKeys = []; wireguardDevices = []; } (lib.attrsets.attrValues admins);
+      admins = admins;
+      wireguardDevices = lib.lists.foldl (
+        wireguardDevices: adminConfig:
+        wireguardDevices ++ (if adminConfig ? "wireguardDevices" then adminConfig.wireguardDevices else [ ])
+      ) [ ] (lib.attrsets.attrValues admins);
+      sshPubKeys = lib.lists.foldl (
+        sshPubKeys: adminConfig:
+        sshPubKeys
+        ++ (if adminConfig ? "sshPubKeys" then lib.attrsets.attrValues adminConfig.sshPubKeys else [ ])
+      ) [ ] (lib.attrsets.attrValues admins);
       robots.sshPubKeys = lib.attrsets.attrValues robots;
     };
   };

logins/robots.nix

@@ -1,7 +1,8 @@
 {
   # Used for restic backups to droppie, a server run by @b12f
-  "root@droppie" = "ssh-ed25519 AAAAC3NzaC1lZDI1NTE5AAAAIBZQSephFJU0NMbVbhwvVJ2/m6jcPYo1IsWCsoarqKin root@droppie";
+  "root@droppie" =
+    "ssh-ed25519 AAAAC3NzaC1lZDI1NTE5AAAAIBZQSephFJU0NMbVbhwvVJ2/m6jcPYo1IsWCsoarqKin root@droppie";
 
-  # robot user on flora-6
-  "hakkonaut@flora-6" = "ssh-ed25519 AAAAC3NzaC1lZDI1NTE5AAAAIGP5MvCwNRtCcP1pSDrn0XZTNlpOqYnjHDm9/OI4hECW hakkonaut@flora-6";
+  "hakkonaut" =
+    "ssh-ed25519 AAAAC3NzaC1lZDI1NTE5AAAAIGP5MvCwNRtCcP1pSDrn0XZTNlpOqYnjHDm9/OI4hECW hakkonaut";
 }

modules/backups/default.nix

@@ -0,0 +1,292 @@
+{
+  flake,
+  config,
+  lib,
+  pkgs,
+  ...
+}:
+let
+  utils = import "${flake.inputs.nixpkgs}/nixos/lib/utils.nix" {
+    inherit lib;
+    inherit config;
+    inherit pkgs;
+  };
+  # Type for a valid systemd unit option. Needed for correctly passing "timerConfig" to "systemd.timers"
+  inherit (utils.systemdUtils.unitOptions) unitOption;
+  inherit (lib)
+    literalExpression
+    mkOption
+    mkPackageOption
+    types
+    ;
+in
+{
+  options.pub-solar-os.backups = {
+    repos = mkOption {
+      description = ''
+        Configuration of Restic repositories.
+      '';
+      type = types.attrsOf (
+        types.submodule (
+          { name, ... }:
+          {
+            options = {
+              passwordFile = mkOption {
+                type = types.str;
+                description = ''
+                  Read the repository password from a file.
+                '';
+                example = "/etc/nixos/restic-password";
+              };
+
+              environmentFile = mkOption {
+                type = with types; nullOr str;
+                default = null;
+                description = ''
+                  Read repository secrets as environment variables from a file.
+                '';
+                example = "/etc/nixos/restic-env";
+              };
+
+              repository = mkOption {
+                type = with types; nullOr str;
+                default = null;
+                description = ''
+                  repository to backup to.
+                '';
+                example = "sftp:backup@192.168.1.100:/backups/${name}";
+              };
+            };
+          }
+        )
+      );
+
+      default = { };
+      example = {
+        remotebackup = {
+          repository = "sftp:backup@host:/backups/home";
+          passwordFile = "/etc/nixos/secrets/restic-password";
+          environmentFile = "/etc/nixos/secrets/restic-env";
+        };
+      };
+    };
+
+    restic = mkOption {
+      description = ''
+        Periodic backups to create with Restic.
+      '';
+      type = types.attrsOf (
+        types.submodule (
+          { name, ... }:
+          {
+            options = {
+              paths = mkOption {
+                # This is nullable for legacy reasons only. We should consider making it a pure listOf
+                # after some time has passed since this comment was added.
+                type = types.nullOr (types.listOf types.str);
+                default = [ ];
+                description = ''
+                  Which paths to backup, in addition to ones specified via
+                  `dynamicFilesFrom`.  If null or an empty array and
+                  `dynamicFilesFrom` is also null, no backup command will be run.
+                   This can be used to create a prune-only job.
+                '';
+                example = [
+                  "/var/lib/postgresql"
+                  "/home/user/backup"
+                ];
+              };
+
+              exclude = mkOption {
+                type = types.listOf types.str;
+                default = [ ];
+                description = ''
+                  Patterns to exclude when backing up. See
+                  https://restic.readthedocs.io/en/latest/040_backup.html#excluding-files for
+                  details on syntax.
+                '';
+                example = [
+                  "/var/cache"
+                  "/home/*/.cache"
+                  ".git"
+                ];
+              };
+
+              timerConfig = mkOption {
+                type = types.nullOr (types.attrsOf unitOption);
+                default = {
+                  OnCalendar = "daily";
+                  Persistent = true;
+                };
+                description = ''
+                  When to run the backup. See {manpage}`systemd.timer(5)` for
+                  details. If null no timer is created and the backup will only
+                  run when explicitly started.
+                '';
+                example = {
+                  OnCalendar = "00:05";
+                  RandomizedDelaySec = "5h";
+                  Persistent = true;
+                };
+              };
+
+              user = mkOption {
+                type = types.str;
+                default = "root";
+                description = ''
+                  As which user the backup should run.
+                '';
+                example = "postgresql";
+              };
+
+              extraBackupArgs = mkOption {
+                type = types.listOf types.str;
+                default = [ ];
+                description = ''
+                  Extra arguments passed to restic backup.
+                '';
+                example = [ "--exclude-file=/etc/nixos/restic-ignore" ];
+              };
+
+              extraOptions = mkOption {
+                type = types.listOf types.str;
+                default = [ ];
+                description = ''
+                  Extra extended options to be passed to the restic --option flag.
+                '';
+                example = [ "sftp.command='ssh backup@192.168.1.100 -i /home/user/.ssh/id_rsa -s sftp'" ];
+              };
+
+              initialize = mkOption {
+                type = types.bool;
+                default = false;
+                description = ''
+                  Create the repository if it doesn't exist.
+                '';
+              };
+
+              pruneOpts = mkOption {
+                type = types.listOf types.str;
+                default = [ ];
+                description = ''
+                  A list of options (--keep-\* et al.) for 'restic forget
+                  --prune', to automatically prune old snapshots.  The
+                  'forget' command is run *after* the 'backup' command, so
+                  keep that in mind when constructing the --keep-\* options.
+                '';
+                example = [
+                  "--keep-daily 7"
+                  "--keep-weekly 5"
+                  "--keep-monthly 12"
+                  "--keep-yearly 75"
+                ];
+              };
+
+              runCheck = mkOption {
+                type = types.bool;
+                default = (builtins.length config.pub-solar-os.backups.restic.${name}.checkOpts > 0);
+                defaultText = literalExpression ''builtins.length config.services.backups.${name}.checkOpts > 0'';
+                description = "Whether to run the `check` command with the provided `checkOpts` options.";
+                example = true;
+              };
+
+              checkOpts = mkOption {
+                type = types.listOf types.str;
+                default = [ ];
+                description = ''
+                  A list of options for 'restic check'.
+                '';
+                example = [ "--with-cache" ];
+              };
+
+              dynamicFilesFrom = mkOption {
+                type = with types; nullOr str;
+                default = null;
+                description = ''
+                  A script that produces a list of files to back up.  The
+                  results of this command are given to the '--files-from'
+                  option. The result is merged with paths specified via `paths`.
+                '';
+                example = "find /home/matt/git -type d -name .git";
+              };
+
+              backupPrepareCommand = mkOption {
+                type = with types; nullOr str;
+                default = null;
+                description = ''
+                  A script that must run before starting the backup process.
+                '';
+              };
+
+              backupCleanupCommand = mkOption {
+                type = with types; nullOr str;
+                default = null;
+                description = ''
+                  A script that must run after finishing the backup process.
+                '';
+              };
+
+              package = mkPackageOption pkgs "restic" { };
+
+              createWrapper = lib.mkOption {
+                type = lib.types.bool;
+                default = true;
+                description = ''
+                  Whether to generate and add a script to the system path, that has the same environment variables set
+                  as the systemd service. This can be used to e.g. mount snapshots or perform other opterations, without
+                  having to manually specify most options.
+                '';
+              };
+            };
+          }
+        )
+      );
+      default = { };
+      example = {
+        localbackup = {
+          paths = [ "/home" ];
+          exclude = [ "/home/*/.cache" ];
+          initialize = true;
+        };
+        remotebackup = {
+          paths = [ "/home" ];
+          extraOptions = [
+            "sftp.command='ssh backup@host -i /etc/nixos/secrets/backup-private-key -s sftp'"
+          ];
+          timerConfig = {
+            OnCalendar = "00:05";
+            RandomizedDelaySec = "5h";
+          };
+        };
+      };
+    };
+  };
+
+  config = {
+    services.restic.backups =
+      let
+        repos = config.pub-solar-os.backups.repos;
+        restic = config.pub-solar-os.backups.restic;
+
+        repoNames = builtins.attrNames repos;
+        backupNames = builtins.attrNames restic;
+
+        createBackups =
+          backupName:
+          map (repoName: {
+            name = "${backupName}-${repoName}";
+            value = repos."${repoName}" // restic."${backupName}";
+          }) repoNames;
+
+      in
+      builtins.listToAttrs (lib.lists.flatten (map createBackups backupNames));
+
+    # Used for pub-solar-os.backups.repos.storagebox
+    programs.ssh.knownHosts = {
+      "u377325.your-storagebox.de".publicKey =
+        "ssh-rsa AAAAB3NzaC1yc2EAAAABIwAAAQEA5EB5p/5Hp3hGW1oHok+PIOH9Pbn7cnUiGmUEBrCVjnAw+HrKyN8bYVV0dIGllswYXwkG/+bgiBlE6IVIBAq+JwVWu1Sss3KarHY3OvFJUXZoZyRRg/Gc/+LRCE7lyKpwWQ70dbelGRyyJFH36eNv6ySXoUYtGkwlU5IVaHPApOxe4LHPZa/qhSRbPo2hwoh0orCtgejRebNtW5nlx00DNFgsvn8Svz2cIYLxsPVzKgUxs8Zxsxgn+Q/UvR7uq4AbAhyBMLxv7DjJ1pc7PJocuTno2Rw9uMZi1gkjbnmiOh6TTXIEWbnroyIhwc8555uto9melEUmWNQ+C+PwAK+MPw==";
+      "[u377325.your-storagebox.de]:23".publicKey =
+        "ssh-ed25519 AAAAC3NzaC1lZDI1NTE5AAAAIICf9svRenC/PLKIL9nk6K/pxQgoiFC41wTNvoIncOxs";
+    };
+  };
+}

modules/caddy/default.nix

@@ -0,0 +1,22 @@
+{
+  config,
+  lib,
+  pkgs,
+  flake,
+  ...
+}:
+{
+  services.caddy = {
+    enable = lib.mkForce true;
+    group = config.pub-solar-os.authentication.robot.username;
+    email = config.pub-solar-os.adminEmail;
+    enableReload = true;
+    globalConfig = lib.mkForce ''
+      grace_period 60s
+    '';
+  };
+  networking.firewall.allowedTCPPorts = [
+    80
+    443
+  ];
+}

modules/collabora/default.nix

@@ -1,10 +1,12 @@
-{ config
-, lib
-, pkgs
-, self
-, ...
-}: {
-  services.nginx.virtualHosts."collabora.pub.solar" = {
+{
+  config,
+  lib,
+  pkgs,
+  self,
+  ...
+}:
+{
+  services.nginx.virtualHosts."collabora.${config.pub-solar-os.networking.domain}" = {
     enableACME = true;
     forceSSL = true;
 
@@ -24,16 +26,14 @@
       containers."collabora" = {
         image = "collabora/code";
         autoStart = true;
-        ports = [
-          "127.0.0.1:9980:9980"
-        ];
+        ports = [ "127.0.0.1:9980:9980" ];
         extraOptions = [
           "--cap-add=MKNOD"
           "--pull=always"
         ];
         environment = {
-          server_name = "collabora.pub.solar";
-          aliasgroup1 = "https://cloud.pub.solar:443";
+          server_name = "collabora.${config.pub-solar-os.networking.domain}";
+          aliasgroup1 = "https://cloud.${config.pub-solar-os.networking.domain}:443";
           DONT_GEN_SSL_CERT = "1";
           extra_params = "--o:ssl.enable=false --o:ssl.termination=true";
           SLEEPFORDEBUGGER = "0";

modules/core/default.nix

@@ -0,0 +1,58 @@
+{
+  pkgs,
+  config,
+  flake,
+  lib,
+  ...
+}:
+{
+  imports = [
+    ./nix.nix
+    ./networking.nix
+    ./terminal-tooling.nix
+    ./users.nix
+  ];
+
+  options.pub-solar-os =
+    let
+      inherit (lib) mkOption types;
+    in
+    {
+      adminEmail = mkOption {
+        description = "Email address to use for administrative stuff like ACME";
+        type = types.str;
+        default = "admins@pub.solar";
+      };
+
+      privacyPolicyUrl = mkOption {
+        description = "URL of the privacy policy. Used to link there from applications";
+        type = types.str;
+        default = "https://pub.solar/privacy";
+      };
+
+      imprintUrl = mkOption {
+        description = "URL of the imprint. Used to link there from applications";
+        type = types.str;
+        default = "https://pub.solar/about";
+      };
+    };
+
+  config = {
+    environment = {
+      # Just a couple of global packages to make our lives easier
+      systemPackages = with pkgs; [
+        git
+        vim
+        wget
+      ];
+    };
+
+    # Select internationalization properties
+    console = {
+      font = "Lat2-Terminus16";
+      keyMap = "us";
+    };
+
+    time.timeZone = "Etc/UTC";
+  };
+}

modules/core/networking.nix

@@ -0,0 +1,84 @@
+{
+  pkgs,
+  lib,
+  config,
+  ...
+}:
+{
+  options.pub-solar-os.networking =
+    let
+      inherit (lib) mkOption types;
+    in
+    {
+      domain = mkOption {
+        description = "domain on which all services should run. This defaults to pub.solar";
+        type = types.str;
+        default = "pub.solar";
+      };
+
+      defaultInterface = mkOption {
+        description = "Network interface which should be used as the default internet-connected one";
+        type = types.nullOr types.str;
+      };
+    };
+
+  config = {
+
+    # Don't expose SSH via public interfaces
+    networking.firewall.interfaces.wg-ssh.allowedTCPPorts = [ 22 ];
+
+    networking.domain = config.pub-solar-os.networking.domain;
+
+    networking.hosts = {
+      "10.7.6.1" = [ "nachtigall.wg.${config.pub-solar-os.networking.domain}" ];
+      "10.7.6.3" = [ "metronom.wg.${config.pub-solar-os.networking.domain}" ];
+      "10.7.6.4" = [ "tankstelle.wg.${config.pub-solar-os.networking.domain}" ];
+      "10.7.6.5" = [ "trinkgenossin.wg.${config.pub-solar-os.networking.domain}" ];
+      "10.7.6.6" = [ "delite.wg.${config.pub-solar-os.networking.domain}" ];
+      "10.7.6.7" = [ "blue-shell.wg.${config.pub-solar-os.networking.domain}" ];
+      "fd00:fae:fae:fae:fae:1::" = [ "nachtigall.wg.${config.pub-solar-os.networking.domain}" ];
+      "fd00:fae:fae:fae:fae:3::" = [ "metronom.wg.${config.pub-solar-os.networking.domain}" ];
+      "fd00:fae:fae:fae:fae:4::" = [ "tankstelle.wg.${config.pub-solar-os.networking.domain}" ];
+      "fd00:fae:fae:fae:fae:5::" = [ "trinkgenossin.wg.${config.pub-solar-os.networking.domain}" ];
+      "fd00:fae:fae:fae:fae:6::" = [ "delite.wg.${config.pub-solar-os.networking.domain}" ];
+      "fd00:fae:fae:fae:fae:7::" = [ "blue-shell.wg.${config.pub-solar-os.networking.domain}" ];
+    };
+
+    services.openssh = {
+      enable = true;
+      openFirewall = lib.mkDefault false;
+      settings = {
+        PermitRootLogin = "prohibit-password";
+        PasswordAuthentication = false;
+        # Add back openssh MACs that got removed from defaults
+        # for backwards compatibility
+        #
+        # NixOS default openssh MACs have changed to use "encrypt-then-mac" only.
+        # This breaks compatibilty with clients that do not offer these MACs. For
+        # compatibility reasons, we add back the old defaults.
+        # See: https://github.com/NixOS/nixpkgs/pull/231165
+        #
+        # https://blog.stribik.technology/2015/01/04/secure-secure-shell.html
+        # https://infosec.mozilla.org/guidelines/openssh#modern-openssh-67
+        Macs = [
+          "hmac-sha2-512-etm@openssh.com"
+          "hmac-sha2-256-etm@openssh.com"
+          "umac-128-etm@openssh.com"
+          "hmac-sha2-512"
+          "hmac-sha2-256"
+          "umac-128@openssh.com"
+        ];
+      };
+    };
+
+    services.resolved = {
+      enable = true;
+      extraConfig = ''
+        DNS=193.110.81.0#dns0.eu 185.253.5.0#dns0.eu 2a0f:fc80::#dns0.eu 2a0f:fc81::#dns0.eu 9.9.9.9#dns.quad9.net 149.112.112.112#dns.quad9.net 2620:fe::fe#dns.quad9.net 2620:fe::9#dns.quad9.net
+        FallbackDNS=5.1.66.255#dot.ffmuc.net 185.150.99.255#dot.ffmuc.net 2001:678:e68:f000::#dot.ffmuc.net 2001:678:ed0:f000::#dot.ffmuc.net
+        Domains=~.
+        DNSOverTLS=yes
+      '';
+    };
+  };
+}

modules/core/nix.nix

@@ -1,11 +1,26 @@
-{ config
-, pkgs
-, lib
-, flake
-, ...
-}: {
-  nixpkgs.config.allowUnfreePredicate = pkg: builtins.elem (lib.getName pkg) [
-  ];
+{
+  config,
+  pkgs,
+  lib,
+  flake,
+  ...
+}:
+{
+  nixpkgs.config = lib.mkDefault {
+    allowUnfreePredicate = pkg: builtins.elem (lib.getName pkg) [ ];
+    permittedInsecurePackages = [ "olm-3.2.16" ];
+  };
+
+  system.activationScripts.diff-closures = {
+    text = ''
+      if [[ -e /run/current-system ]]; then
+        ${config.nix.package}/bin/nix store diff-closures \
+          /run/current-system "$systemConfig" \
+          --extra-experimental-features nix-command
+      fi
+    '';
+    supportsDryActivation = true;
+  };
 
   nix = {
     # Use default version alias for nix package
@@ -25,7 +40,10 @@
       # Prevents impurities in builds
       sandbox = true;
       # Give root and @wheel special privileges with nix
-      trusted-users = [ "root" "@wheel" ];
+      trusted-users = [
+        "root"
+        "@wheel"
+      ];
       # Allow only group wheel to connect to the nix daemon
       allowed-users = [ "@wheel" ];
     };
@@ -41,7 +59,7 @@
 
     nixPath = [
       "nixpkgs=${flake.inputs.nixpkgs}"
-      "nixos-config=${../lib/compat/nixos}"
+      "nixos-config=${../../lib/compat/nixos}"
       "home-manager=${flake.inputs.home-manager}"
     ];
   };