Workflow improvement: Use a repo bundler to make a single file and drop your entire codebase in gemini or chatgpt. Their whole codebase comprehension is great and you can chat for a long time without the api cost. You can even get them to comment on each other's feedback, it's great.
I can get useful info from gemini on 120k loc projects with repomix ignoring a few select files. If you're in the enterprise world obviously it's a different thing.
