I finally got a separate VM Environment up and configured just for Docker.
And with that dedicated docker environment, I finally check up on @freedosproject ‘s Builder RBEv4
So far, it seems to just pull in projects, not build the install media. I should get more familiar with this branch before adding my touches to it.
FreeDOS Builder RBEv4 is available here:
https://gitlab.com/FreeDOS/OS/builder/-/tree/RBE4?ref_type=heads