Replace 5 sequential build-push-action steps with a single docker/bake-action call backed by docker-bake.hcl. BuildKit now builds all images in parallel: backend/runner/pocketbase share one Go builder stage (compiled once), while caddy and ui build concurrently alongside the Go targets. Workflow YAML goes from ~130 lines of build steps to ~35. Adding a new image now only requires a new target block in docker-bake.hcl. Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>