Yeah an example is that currently you can't build Bevy games in the browser with scripting in Lua, so I've gotten a little traction there.
And yes it seems like there has been many attempts to get a solid Rust Lua over the years and most never reached parity so hoping some people can find use case for it! This one is at full parity in terms of behavior and performance is getting to within striking distance.
Best of luck! We used mlua at $JOB for scripting support, and it worked great, but we’d have preferred a pure rust solution if one existed with the right performance profile
It just seems like a lot of hassle to write a lua interpreter, although it would be nice to see a high quality one in Rust :)
Hematita was promising, but looks abandoned.