More information here https://www.linuxserver.io/blog/spring-cleaning-new-images-and-rebasing Please consider using one of these alternatives:
https://github.com/gaseous-project/gaseous-server https://github.com/rommapp/romm/ https://github.com/webrcade/webrcade
latest or branch (develop, nightly, etc.) tags and will need to use a specific version tag if you still need access to the image. You can read more about this here.