He left for a break, returned and there was no second break or anything.

I don't want to spam it in repo, so leaving it here: he is kind of a hero doing this work and I (hopefully we) am very grateful for his contribution to this world.

Are there great uses of LuaJIT out there? It was such a big thing before fast JS engines IIRC.

Off the top of my head, openresty, neovim, love2d

Cloudflare does or at least did use it a lot.