Actually try a series22 build

.github/workflows/armhf_lxd.yaml

@@ -9,6 +9,7 @@ jobs:
     # Run steps on a matrix of 4 arch/distro combinations
     steps:
       - uses: actions/checkout@v4
+        fetch-depth: 0
       - uses: uraimo/run-on-arch-action@v2
         name: Build artifact
         id: build
@@ -17,22 +18,14 @@ jobs:
           distro: ubuntu22.04
 
           # Not required, but speeds up builds
-          githubToken: ${{ github.token }}
-
-          # Create an artifacts directory
-          setup: |
-            mkdir -p "${PWD}/artifacts"
+          #githubToken: ${{ github.token }}
 
           # Mount the artifacts directory as /artifacts in the container
           dockerRunArgs: |
-            --volume "${PWD}/artifacts:/artifacts"
-
-          # Pass some environment variables to the container
-          env: | # YAML, but pipe character is necessary
-            artifact_name: git-${{ matrix.distro }}_${{ matrix.arch }}
+            --volume "$GITHUB_WORKSPACE/checkbox:/checkbox"
 
           # The shell to run commands with in the container
-          shell: /bin/sh
+          shell: /bin/bash
 
           # Install some dependencies in the container. This speeds up builds if
           # you are also using githubToken. Any dependencies installed here will
@@ -41,16 +34,21 @@ jobs:
           # publicly in your project's package repository, so it is vital that
           # no secrets are present in the container state or logs.
           install: |
-              apt-get update -q -y
-              apt-get install -q -y git
+            sudo snap install lxd snapcraft
+            sudo lxd init --auto
 
           # Produce a binary artifact and place it in the mounted volume
           run: |
-            cp $(which git) "/artifacts/${artifact_name}"
-            echo "Produced artifact at /artifacts/${artifact_name}"
+            cd /checkbox/checkbox-core-snap/
+            ./prepare.sh series22
+            cd series22
+            sudo snapcraft --use-lxd
 
       - name: Show the artifact
         # Items placed in /artifacts in the container will be in
         # ${PWD}/artifacts on the host.
         run: |
-          ls -al "${PWD}/artifacts"
+          ls checkbox/checkbox-core-snap/series22
+
+      - uses: actions/upload-artifact@v4
+        path: checkbox-core-snap/series22/*.snap