can we build machines

.github/workflows/build-and-cache.yml

@@ -3,7 +3,7 @@ on:
   workflow_dispatch:
   push:
 jobs:
-  build:
+  build packages:
     strategy:
       matrix:
         package:
@@ -28,3 +28,27 @@ jobs:
           cache: ${{ vars.ATTIC_CACHE }}
           token: ${{ secrets.ATTIC_TOKEN }}
       - run: nix build -L '${{ matrix.package }}'
+  build machines:
+    strategy:
+      matrix:
+        machine:
+          - chunk
+          - ytnix
+          - titan
+        os:
+          - ubuntu-latest
+          - macos-latest
+    runs-on: ${{ matrix.os }}
+    continue-on-error: true
+    steps:
+      - uses: DeterminateSystems/nix-installer-action@main
+        with:
+          logger: pretty
+      - uses: DeterminateSystems/magic-nix-cache-action@main
+      - name: Setup Attic cache
+        uses: ryanccn/attic-action@v0
+        with:
+          endpoint: ${{ vars.ATTIC_ENDPOINT }}
+          cache: ${{ vars.ATTIC_CACHE }}
+          token: ${{ secrets.ATTIC_TOKEN }}
+      - run: nix build -L .#nixosConfigurations.${{ matrix.machine }}$.config.system.build.toplevel