Booting Docker images is fairly straightforward, I wrote about how to do this manually some years ago: https://blog.davidv.dev/posts/docker-based-images-on-baremet...

I was going to try this to perhaps use it in production. Turns out the RHEL clones like Alma or Rocky doesn't have this thing in production-ready grade. All options you have now are owned by Red Hat themselves.

The project roadmap actually includes plans to expand beyond Red Hat family distributions - there's active work to add support for Debian/Ubuntu and potentially other distros.

Is there something about this makes it red hat specific. An OS is just a specific collection of files in the end. Whether things are installed with rpm or Deb shouldn't matter?

Ublue also builds Ubuntu versions of a lot of this.

bootc is a CNCF project now, so anybody can get on board.