One Gradle project per directory; settings.gradle.kts includes every services/<name>/build.gradle.kts as :<name>. app is the service the template ships and the one deploy/compose.prod.yml, the Caddyfile and CI build.

1. cp -r services/app services/<name>; change group in its build.gradle.kts to <base package>.<name> and move the sources to that package; delete what the new service does not need.
2. compose.yml: a second app-like service with dockerfile: services/<name>/Dockerfile and its own SERVER_PORT. deploy/compose.prod.yml: same, image ghcr.io/<owner>/<repo>/<name>, on edge + data.
3. deploy/Caddyfile: a handle_path /<name>/* block with its own reverse_proxy + dynamic a { name <name> }.
4. .github/workflows/ci.yml: a second entry in the image job (or a matrix) with file: services/<name>/Dockerfile and image ghcr.io/<owner>/<repo>/<name>; the Dockerfile's COPY path.
5. make lock SERVICE=<name>; make run SERVICE=<name>.