Pluto seems cool, and I hadn't heard of it! Looks like they don't have a type system though, so it's more in the flavor of "extensions to Lua 5.4" than actively growing the language in a different direction than Lua itself has been growing.

heh, their custom package manager wrote its own dulwich https://github.com/PlutoLang/apm/blob/aca3620553ed7090552dbd...