> It even uses Ruff's code under the surface.

This is the modus operandi for a lot of vibe coded stuff. Absorb the code of entire projects wholesale and then repackage it as something new.

Some of them have the decency to at least give credits to the original.

That's how you know it's just for show. A practically equivalent (for Fable) but infinitely more valuable contribution would've been to implement any missing lints as a PR to ruff rather than reinventing (copying) the wheel.

Speculative hyothesis: It might not be compatible with a capitalist social order, but also I get the impression that it' something that will staylike something that will stay. The involved means of production and their control are the critical point here. (Also - highly speculative - potentially the question if they should be >>owned<< at all even by some abstract commons)