[nerdponx]

Doesn't Vim have Lua support too?

[jmcphers]

Neovim does, and it will be a first class scripting citizen in 0.3.

https://neovim.io/roadmap/

[humanrebar]

I know there are plugins for the lua file type (syntax highlighting, etc.). I don't know if you can write plugins in lua.

[sigzero]

Lua is a valid language to write plugins.