They don't need that much data. They operate in a higher dimensional space. You can fine-tune a model trained on JS/Python and teach it Lua with little issue.

They don't need that much data. They operate in a higher dimensional space. You can fine-tune a model trained on JS/Python and teach it Lua with little issue. If you have a proper rosetta for your language to a language that is well represented in the training corpus, it isn't an issue.