It's not uncommon to mix multiple languages in a single project. Actually, I see a lot of people use c or c++ alongside Lua (by embedding the interpreter) - esp

It's not uncommon to mix multiple languages in a single project. Actually, I see a lot of people use c or c++ alongside Lua (by embedding the interpreter) - especially in videogames. The other option is to split the project into multiple services. Implement the backend service in e.g. c, and then do the front-end/GUI in, say, Python. This model is seen a lot with things like media players (e.g. mpd).