Split niri and gnome builds using a matrix workflow, for now.

.gitea/workflows/build.yml

@@ -38,6 +38,10 @@ jobs:
     name: Build and push image
     runs-on: ubuntu-24.04
 
+    strategy:
+      matrix:
+        variant: [gnome, niri]
+
     permissions:
       contents: read
       packages: write
@@ -74,9 +78,9 @@ jobs:
           # This generates all the tags for your image, you can add custom tags here too!
           tags: |
             type=sha,enable=${{ github.event_name == 'pull_request' }}
-            type=raw,value=latest
-            type=raw,value=${{ env.FEDORA_BASE }}
-            type=raw,value=${{ env.FEDORA_BASE }}-{{date 'YYYYMMDD'}}
+            type=raw,value=latest-${{ matrix.variant }}
+            type=raw,value=${{ env.FEDORA_BASE }}-${{ matrix.variant }}
+            type=raw,value=${{ env.FEDORA_BASE }}-${{ matrix.variant }}-{{date 'YYYYMMDD'}}
             type=ref,event=pr
           labels: |
             io.artifacthub.package.readme-url=${{ env.README_URL }}
@@ -106,7 +110,7 @@ jobs:
         uses: redhat-actions/buildah-build@7a95fa7ee0f02d552a32753e7414641a04307056 # v2
         with:
           containerfiles: |
-            ./Containerfile
+            ./Containerfile.${{ matrix.variant }}
           build-args: |
             FEDORA_BASE=${{ env.FEDORA_BASE }}
           image: ${{ env.IMAGE_NAME }}