What other project files or GitHub code? It’s a new language. And what does “hoover up” mean? Use the context window for language basics? RAG? Retrain the model

What other project files or GitHub code? It’s a new language. And what does “hoover up” mean? Use the context window for language basics? RAG? Retrain the model? Also the LLM won’t have been trained on the vast corpus of debugging sessions, blog posts, etc of existing languages. I’d expect the quality to be very poor compared to the current top players. (It’s effectively the same phenomenon as folks sticking to languages with a big hiring pool.)