diff --git a/flake.lock b/flake.lock
index be945455..412674f9 100644
--- a/flake.lock
+++ b/flake.lock
@@ -13,11 +13,11 @@
         ]
       },
       "locked": {
-        "lastModified": 1696775529,
-        "narHash": "sha256-TYlE4B0ktPtlJJF9IFxTWrEeq+XKG8Ny0gc2FGEAdj0=",
+        "lastModified": 1701216516,
+        "narHash": "sha256-jKSeJn+7hZ1dZdiH1L+NWUGT2i/BGomKAJ54B9kT06Q=",
         "owner": "ryantm",
         "repo": "agenix",
-        "rev": "daf42cb35b2dc614d1551e37f96406e4c4a2d3e4",
+        "rev": "13ac9ac6d68b9a0896e3d43a082947233189e247",
         "type": "github"
       },
       "original": {
@@ -108,11 +108,11 @@
         "nixpkgs-lib": "nixpkgs-lib"
       },
       "locked": {
-        "lastModified": 1698882062,
-        "narHash": "sha256-HkhafUayIqxXyHH1X8d9RDl1M2CkFgZLjKD3MzabiEo=",
+        "lastModified": 1701473968,
+        "narHash": "sha256-YcVE5emp1qQ8ieHUnxt1wCZCC3ZfAS+SRRWZ2TMda7E=",
         "owner": "hercules-ci",
         "repo": "flake-parts",
-        "rev": "8c9fa2545007b49a5db5f650ae91f227672c3877",
+        "rev": "34fed993f1674c8d06d58b37ce1e0fe5eebcb9f5",
         "type": "github"
       },
       "original": {
@@ -161,16 +161,16 @@
         ]
       },
       "locked": {
-        "lastModified": 1699748081,
-        "narHash": "sha256-MOmMapBydd7MTjhX4eeQZzKlCABWw8W6iSHSG4OeFKE=",
+        "lastModified": 1700814205,
+        "narHash": "sha256-lWqDPKHRbQfi+zNIivf031BUeyciVOtwCwTjyrhDB5g=",
         "owner": "nix-community",
         "repo": "home-manager",
-        "rev": "04bac349d585c9df38d78e0285b780a140dc74a4",
+        "rev": "aeb2232d7a32530d3448318790534d196bf9427a",
         "type": "github"
       },
       "original": {
         "owner": "nix-community",
-        "ref": "release-23.05",
+        "ref": "release-23.11",
         "repo": "home-manager",
         "type": "github"
       }
@@ -205,11 +205,11 @@
         ]
       },
       "locked": {
-        "lastModified": 1699867978,
-        "narHash": "sha256-+arl45HUOcBdKiRGrKXZYXDyBQ6MQGkYPZa/28f6Yzo=",
+        "lastModified": 1700795494,
+        "narHash": "sha256-gzGLZSiOhf155FW7262kdHo2YDeugp3VuIFb4/GGng0=",
         "owner": "lnl7",
         "repo": "nix-darwin",
-        "rev": "e67f2bf515343da378c3f82f098df8ca01bccc5f",
+        "rev": "4b9b83d5a92e8c1fbfd8eb27eda375908c11ec4d",
         "type": "github"
       },
       "original": {
@@ -221,11 +221,11 @@
     },
     "nixos-flake": {
       "locked": {
-        "lastModified": 1699802281,
-        "narHash": "sha256-kfR7z4so9s9vsYHT3Q9kU/GvYYCVeBsQH1h7EpSvkHg=",
+        "lastModified": 1701201086,
+        "narHash": "sha256-GU2A+dI5Kp2+4g2dWixeTkp6yKhaW9BZ1uE9Z5cC82w=",
         "owner": "srid",
         "repo": "nixos-flake",
-        "rev": "40010feda1ac1afdcc2571ef550ef3de44926b0e",
+        "rev": "7c9168884128ed4634751b3e2f5553b09d7b8cb0",
         "type": "github"
       },
       "original": {
@@ -236,16 +236,16 @@
     },
     "nixpkgs": {
       "locked": {
-        "lastModified": 1700097215,
-        "narHash": "sha256-ODQ3gBTv1iHd7lG21H+ErVISB5wVeOhd/dEogOqHs/I=",
+        "lastModified": 1701389149,
+        "narHash": "sha256-rU1suTIEd5DGCaAXKW6yHoCfR1mnYjOXQFOaH7M23js=",
         "owner": "nixos",
         "repo": "nixpkgs",
-        "rev": "9fb122519e9cd465d532f736a98c1e1eb541ef6f",
+        "rev": "5de0b32be6e85dc1a9404c75131316e4ffbc634c",
         "type": "github"
       },
       "original": {
         "owner": "nixos",
-        "ref": "nixos-23.05",
+        "ref": "nixos-23.11",
         "repo": "nixpkgs",
         "type": "github"
       }
@@ -269,11 +269,11 @@
     "nixpkgs-lib": {
       "locked": {
         "dir": "lib",
-        "lastModified": 1698611440,
-        "narHash": "sha256-jPjHjrerhYDy3q9+s5EAsuhyhuknNfowY6yt6pjn9pc=",
+        "lastModified": 1701253981,
+        "narHash": "sha256-ztaDIyZ7HrTAfEEUt9AtTDNoCYxUdSd6NrRHaYOIxtk=",
         "owner": "NixOS",
         "repo": "nixpkgs",
-        "rev": "0cbe9f69c234a7700596e943bfae7ef27a31b735",
+        "rev": "e92039b55bcd58469325ded85d4f58dd5a4eaf58",
         "type": "github"
       },
       "original": {
@@ -356,11 +356,11 @@
     },
     "unstable": {
       "locked": {
-        "lastModified": 1700204040,
-        "narHash": "sha256-xSVcS5HBYnD3LTer7Y2K8ZQCDCXMa3QUD1MzRjHzuhI=",
+        "lastModified": 1701253981,
+        "narHash": "sha256-ztaDIyZ7HrTAfEEUt9AtTDNoCYxUdSd6NrRHaYOIxtk=",
         "owner": "nixos",
         "repo": "nixpkgs",
-        "rev": "c757e9bd77b16ca2e03c89bf8bc9ecb28e0c06ad",
+        "rev": "e92039b55bcd58469325ded85d4f58dd5a4eaf58",
         "type": "github"
       },
       "original": {
diff --git a/flake.nix b/flake.nix
index c1711809..350ce522 100644
--- a/flake.nix
+++ b/flake.nix
@@ -1,7 +1,7 @@
 {
   inputs = {
     # Track channels with commits tested and built by hydra
-    nixpkgs.url = "github:nixos/nixpkgs/nixos-23.05";
+    nixpkgs.url = "github:nixos/nixpkgs/nixos-23.11";
     unstable.url = "github:nixos/nixpkgs/nixos-unstable";
 
     nixpkgs-2205.url = "github:nixos/nixpkgs/nixos-22.05";
@@ -9,7 +9,7 @@
     nix-darwin.url = "github:lnl7/nix-darwin/master";
     nix-darwin.inputs.nixpkgs.follows = "nixpkgs";
 
-    home-manager.url = "github:nix-community/home-manager/release-23.05";
+    home-manager.url = "github:nix-community/home-manager/release-23.11";
     home-manager.inputs.nixpkgs.follows = "nixpkgs";
 
     flake-parts.url = "github:hercules-ci/flake-parts";
diff --git a/hosts/flora-6/configuration.nix b/hosts/flora-6/configuration.nix
index dc208455..2c49348b 100644
--- a/hosts/flora-6/configuration.nix
+++ b/hosts/flora-6/configuration.nix
@@ -7,15 +7,6 @@
 }: let
   psCfg = config.pub-solar;
 in {
-  imports = [
-    "${flake.inputs.unstable}/nixos/modules/services/continuous-integration/gitea-actions-runner.nix"
-    "${flake.inputs.unstable}/nixos/modules/services/web-servers/caddy/default.nix"
-  ];
-  disabledModules = [
-    "services/continuous-integration/gitea-actions-runner.nix"
-    "services/web-servers/caddy/default.nix"
-  ];
-
   config = {
     # Override nix.conf for more agressive garbage collection
     nix.extraOptions = lib.mkForce ''
diff --git a/hosts/nachtigall/apps/nextcloud.nix b/hosts/nachtigall/apps/nextcloud.nix
index 555f0aa5..2c946bb3 100644
--- a/hosts/nachtigall/apps/nextcloud.nix
+++ b/hosts/nachtigall/apps/nextcloud.nix
@@ -108,10 +108,6 @@
       simpleSignUpLink.shown = false;
     };
 
-    phpOptions = {
-      "opcache.interned_strings_buffer" = "16";
-    };
-
     # Calculated with 4GiB RAM, 80MiB process size available on
     # https://spot13.com/pmcalculator/
     poolSettings = {
diff --git a/hosts/nachtigall/default.nix b/hosts/nachtigall/default.nix
index 5e21f537..a7729a25 100644
--- a/hosts/nachtigall/default.nix
+++ b/hosts/nachtigall/default.nix
@@ -30,15 +30,5 @@
       ./apps/matrix/synapse.nix
       ./apps/matrix/irc.nix
       ./apps/nginx-matrix.nix
-
-      # Override with module from nixos-unstable, needs to be added
-      # to disabledModules as well
-      "${flake.inputs.unstable}/nixos/modules/services/misc/gitea.nix"
-      "${flake.inputs.unstable}/nixos/modules/services/web-apps/mastodon.nix"
-    ];
-
-    disabledModules = [
-      "services/misc/gitea.nix"
-      "services/web-apps/mastodon.nix"
     ];
 }
diff --git a/overlays/default.nix b/overlays/default.nix
index c11a2c9f..4f7efb86 100644
--- a/overlays/default.nix
+++ b/overlays/default.nix
@@ -8,12 +8,6 @@
       overlays = ({ ... }: {
         nixpkgs.overlays = [
           (final: prev: {
-            mastodon = inputs.unstable.legacyPackages.${prev.system}.mastodon;
-            forgejo = inputs.unstable.legacyPackages.${prev.system}.forgejo;
-            forgejo-actions-runner = inputs.unstable.legacyPackages.${prev.system}.forgejo-actions-runner;
-
-            mediawiki = inputs.unstable.legacyPackages.${prev.system}.mediawiki;
-
             element-themes = prev.callPackage ./pkgs/element-themes { inherit (inputs) element-themes; };
           })
         ];