Not to diminish the effort, but I think replicating the look and design (as in how things work) of MacOS (or Windows 10) is a pitfall that very few alternative OS developers manage to avoid.

It's just a bad idea. They'll never get even close, and those screenshots on Imgur prove it.

What I'd prefer is if these definitely brilliant developers would "own" the Unix history more, and build upon Motif. Put the effort do create a mimicry of MacOS into modernising Motif. Hopefully not just make the chrome translucent, but really think about how Motif would look if invented in 2021.

[2] https://github.com/NsCDE/NsCDE

[3] https://docs.maxxinteractive.com/

[4] https://github.com/trunkmaster/nextspace &

[5] https://trunkmaster.github.io/