[WorldMaker]

The article also points to the issue of multiple repository management, and even includes links to three possible options to solve it.

The questions around "which repositories do I need?" and "how do I update all of them?" and "how do I make an atomic transaction [commit, branch, PR] across all of them?" are interesting questions in a multi-repo situation, but there are plenty of possible answers as well.

Some of them are just social in nature (read the README, watch/follow the whole GitHub organization, etc), so they aren't are as interesting technically as monorepo or "meta-repo" tools.