“For most developers, starting with a RAG-based system or a managed code customization service is the most practical way to get code in your own style from an LLM, especially with a large number of repositories. Fine-tuning is best if you need even deeper alignment and have the resources to support it”

You only have to create the embeddings once though (until you want to update with newer data), but I’m not sure how well rag works with code predictions