Add arm?

.github/workflows/flake.yml

@@ -4,7 +4,7 @@ on:
     branches:
       - master
 jobs:
-  tests:
+  x86:
     runs-on: ubuntu-latest
     steps:
     - name: checkout repo
@@ -21,3 +21,35 @@ jobs:
         password: ${{ secrets.GITHUB_TOKEN }}
     - name: build and push container
       run: nix run .#docker.copyToRegistry
+  arm:
+    runs-on: ubuntu-latest
+    steps:
+    - uses: uraimo/run-on-arch-action@v2
+      name: Run commands
+      id: runcmd
+      with:
+        arch: arm64
+        distro: ubuntu-latest
+
+        # Not required, but speeds up builds by storing container images in
+        # a GitHub package registry.
+        githubToken: ${{ github.token }}
+
+        # Set an output parameter `uname` for use in subsequent steps
+        run: |
+          uname -a
+          echo ::set-output name=uname::$(uname -a)
+    - name: checkout repo
+      uses: actions/checkout@v3
+    - name: install nix
+      uses: cachix/install-nix-action@v22
+      with:
+        github_access_token: ${{ secrets.GITHUB_TOKEN }}
+    - name: Login to registry
+      uses: docker/login-action@v2
+      with:
+        registry: ghcr.io
+        username: ${{ github.actor }}
+        password: ${{ secrets.GITHUB_TOKEN }}
+    - name: build and push container
+      run: nix run .#docker.copyToRegistry