diff --git a/.forgejo/workflows/docker-build.yml b/.forgejo/workflows/docker-build.yml
index 0a30b1f..7799670 100644
--- a/.forgejo/workflows/docker-build.yml
+++ b/.forgejo/workflows/docker-build.yml
@@ -6,7 +6,10 @@ on:
 
 jobs:
   build-and-push:
-    runs-on: ubuntu-latest
+    # 'docker' is the host-mode label (no container image mapping), so the job
+    # runs directly on the Mac Mini where OrbStack's docker and git are present.
+    # 'ubuntu-latest' maps to a container that lacks docker, so builds fail there.
+    runs-on: docker
     steps:
       # Manual checkout with plain git — the runner has no Node, so JS actions
       # like actions/checkout can't run. git + docker are available on the host.