Dockerfile
hadolint
https://github.com/super-linter/super-linter?tab=readme-ov-file#configure-super-linter https://github.com/hadolint/hadolint https://github.com/hadolint/hadolint?tab=readme-ov-file#configure https://github.com/hadolint/hadolint/wiki/DL3042
https://stackoverflow.com/questions/30256386/how-to-copy-multiple-files-in-one-layer-using-a-dockerfile https://docs.docker.com/compose/compose-file/compose-file-v3/
Docker
mruby
Run `pre-commit` and generate `YARD` docs with Docker Update CONTRIBUTING