Another similar project: https://mace.software/

Sadly, not open source (yet?).

Also https://en.wikipedia.org/wiki/Executor_(software) / https://github.com/autc04/executor

Yes, that's the one that I knew about, too. I've pointed the author at it, just in case it helps at all.

> GetResource (requires a Freemount server)

All FS access seems to require a separate local daemon? Seems like a bizarre choice