ci: initial commit of the deploy pipeline

Signed-off-by: silver <silver@skynet.ie>

.forgejo/workflows/deploy.yaml

@@ -0,0 +1,20 @@
+on: [push]
+  paths:
+    - applications/**/*
+    - machines/**/*
+    - secrets/**/*
+    - flake.*
+    - config/**/*
+
+jobs:
+  if: github.repository == 'Skynet/nixos'
+  build:
+    runs-on: nix
+    steps:
+      - uses: actions/checkout@v4
+      - run: nix develop
+      - run: colmena build -v --on @active-dns
+      - run: colmena build -v --on @active-core
+      - run: colmena build -v --on @active
+      - run: colmena build -v --on @active-ext
+      - run: colmena build -v --on @active-gitlab