diff --git a/.drone.yml b/.drone.yml
index 57a0aa1c..986eee5c 100644
--- a/.drone.yml
+++ b/.drone.yml
@@ -1,92 +1,3 @@
----
-kind: pipeline
-type: docker
-name: Upstreaming
-
-steps:
-  - name: "Sync 'devos' branch with upstream"
-    image: alpine/git
-    when:
-      event:
-        - cron
-      cron:
-        - sync-main-with-upstream
-    environment:
-      GITEA_SSH_KEY:
-        from_secret: gitea_ssh_key
-    commands:
-      - ./.drone/setup_ssh.sh
-      - git remote add devos git@git.b12f.io:pub-solar/devos
-      - git remote set-url origin git@git.b12f.io:pub-solar/os
-      - git fetch --all
-      - git checkout -b devos --track origin/devos
-      - git merge -X theirs devos/main
-      - git push origin devos
-      - git remote set-url origin https://git.b12f.io/pub-solar/os.git
-
-  - name: "Sync $BRANCH with upstream"
-    image: alpine/git
-    when:
-      event:
-        - cron
-      cron:
-        - sync-main-with-upstream
-        - sync-b12f-with-main
-        - sync-teutat3s-with-main
-    environment:
-      GITEA_SSH_KEY:
-        from_secret: gitea_ssh_key
-    commands:
-      - git fetch origin
-      - git checkout origin/main
-      - ./.drone/setup_ssh.sh
-      - git remote set-url origin git@git.b12f.io:pub-solar/os
-      - git fetch --all
-      - ./.drone/upstream-branch.sh
-
-  - name: "Open pull request for failed merge"
-    image: nixery.dev/shell/tea
-    when:
-      status:
-        - failure
-      event:
-        - cron
-      cron:
-        - sync-main-with-upstream
-        - sync-b12f-with-main
-        - sync-teutat3s-with-main
-    environment:
-      TEA_CONFIG:
-        from_secret: tea_config
-    commands:
-      - mkdir -p ~/.config/tea
-      - echo "$$TEA_CONFIG" > ~/.config/tea/config.yml
-      - tea pulls create --base main --head devos
-
-  - name: "Notify matrix"
-    image: plugins/matrix
-    when:
-      status:
-        - failure
-      event:
-        - cron
-      cron:
-        - sync-main-with-upstream
-        - sync-b12f-with-main
-        - sync-teutat3s-with-main
-    settings:
-      homeserver: https://matrix.pub.solar
-      roomid: dfQBqwkhIzrFjMSsxy:pub.solar
-      username:
-        from_secret: matrix_username
-      password:
-        from_secret: matrix_password
-      template: "Upstreaming {{ build.status }} [{{ build.branch }}#{{ truncate build.commit 8 }}]({{ build.link }}) by {{ build.author }}. [Pull requests](https://git.b12f.io/pub-solar/os/pulls)"
-
-trigger:
-  event:
-    - cron
-
 ---
 kind: pipeline
 type: docker
@@ -98,11 +9,11 @@ steps:
     when:
       event:
         - pull_request
-        - tag
     environment:
       NIX_FLAGS: "--print-build-logs --verbose"
     commands:
       - 'echo DEBUG: Using NIX_FLAGS: $NIX_FLAGS'
+      - nix $$NIX_FLAGS flake show
       - nix $$NIX_FLAGS build ".#nixosConfigurations.PubSolarOS.config.system.build.toplevel"
       - nix $$NIX_FLAGS develop --command echo OK
 
@@ -113,18 +24,19 @@ name: Tests
 
 steps:
   - name: "Tests"
-    when:
-      event:
-        - pull_request
-        - tag
     environment:
       NIX_FLAGS: "--print-build-logs --verbose"
     commands:
       - 'echo DEBUG: Using NIX_FLAGS: $NIX_FLAGS'
       - nix $$NIX_FLAGS build ".#checks.x86_64-linux.customTestFor-PubSolarOS-firstTest"
-      #- nix $$NIX_FLAGS flake check
-      #- nix $$NIX_FLAGS develop --command echo OK
-      #- nix $$NIX_FLAGS develop --command bud --help
+      - nix-store --read-log result
+      - nix $$NIX_FLAGS flake check
+      - nix $$NIX_FLAGS develop --command echo OK
+
+trigger:
+  ref:
+    - refs/tags/v*
+    - refs/tags/t*
 
 ---
 kind: pipeline
@@ -134,14 +46,15 @@ name: Publish ISO
 steps:
   - name: "Build ISO"
     image: docker.nix-community.org/nixpkgs/nix-flakes:latest
+    environment:
+      NIX_FLAGS: "--print-build-logs --verbose"
     volumes:
       - name: file-exchange
         path: /var/nix/iso-cache
     commands:
       - |
-        nix --print-build-logs --verbose \
-          build \
-            '.#nixosConfigurations.bootstrap.config.system.build.bootstrapIso'
+        nix $$NIX_FLAGS build \
+          '.#nixosConfigurations.bootstrap.config.system.build.bootstrapIso'
       - cp $(readlink -f result)/iso/*.iso /var/nix/iso-cache/
 
   - name: "Publish ISO"
@@ -167,8 +80,10 @@ depends_on:
   - Check
 
 trigger:
+  branch:
+    - main
   event:
-    - tag
+    - push
 
 volumes:
   - name: file-exchange
@@ -176,6 +91,6 @@ volumes:
 
 ---
 kind: signature
-hmac: da951ba8ede88996728acfb47846e01880eb0e3b91f66e47848d6c1cc727c5d9
+hmac: f78042286446a0649b61bdd28240caf7650cf995804acb714b92d145fa028bdf
 
 ...