Seconding Sway. I will admit I prefer autotiling (switching the split for new windows between horizontal/vertical automatically, rather than choosing which split you want), but overall Sway is so good in configuration that I still use it in spite of being a manual. The configuration takes time, but that’s common to pretty much any tiler.
A link to the project would have been helpful: https://github.com/edubart/nelua-lang
Initially I was going to dismiss it as a cool pet project for someone but not really likely to get any traction given the competition in the space–but there are a lot of people who are going to learn Lua as their first language through things like Roblox and other games, so I could actually see it grow as people who already know Lua move out of games and are looking for speed with familiar syntax.
That said, not for me. There are plenty of other languages out there I’m more likely to reach for.