E.g. here (I'd forgotten about this actually): https://github.com/lezer-parser/generator/pull/6#issuecommen...
Here https://github.com/lezer-parser/lr/pull/64#issuecomment-1802...
It's nothing major but just emanates "difficult to work with" vibes so I didn't want to spend my time working with a project like that (looks like not many other people do either).