v4: the devcontainer builds and starts again — the docker-outside-of-docker feature failed to install, since the base image is now Debian trixie, where its default moby option isn't supported; it now installs Docker's own packages ("moby": false). Every service of the compose project was also built under one image name, gerbeur-dev, the workspace with the features and the others without, so whichever finished last took the name and the workspace could lose its docker CLI; each service now gets its own image, built from the same cache.

Checked with the devcontainer CLI's up: the image builds, install exits 0, gerbeur and musique answer on :3000, :3001, :8000 and :8001 (openid-configuration included), and docker ps works as node in the workspace.

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>

.devcontainer/compose.yaml

@@ -18,7 +18,6 @@ x-workspace: &workspace
   build:
     context: .
     dockerfile: Dockerfile
-  image: gerbeur-dev
   network_mode: host
   user: node
   working_dir: /workspaces/gerbeur

.devcontainer/devcontainer.json

@@ -20,7 +20,10 @@
 	"features": {
 		"ghcr.io/warrenbuckley/codespace-features/sqlite:1": {},
 		// The docker CLI, on the host's daemon, for the instances' logs and
-		// restarts (compose.yaml).
-		"ghcr.io/devcontainers/features/docker-outside-of-docker:1": {}
+		// restarts (compose.yaml). Docker's own packages: the base image is Debian
+		// trixie, which has no moby-cli.
+		"ghcr.io/devcontainers/features/docker-outside-of-docker:1": {
+			"moby": false
+		}
 	}
 }