https://github.com/sroerick/pakkun
It's git for ETL. I haven't looked at the code, but I've been using it pretty effectively for the last week or two. I wouldn't feel comfortable recommending it to anybody else, but it was basically one-shotted. I've been dogfooding it on a number of projects, had the LLM iterate on it a bit, and I'm generally very happy with the ergonomics.
https://repo.autonoma.ca/treetrek
There's still some work to do on the rendering side of model objects. Developing the syntax highlighting rules for 40 languages and file formats in about 10 minutes was amazing to see.
https://repo.autonoma.ca/repo/treetrek/tree/HEAD/render/rule...
Edit, great example. What is your long term maintenance strategy, do you keep the original prompts around so you can refine them later or do you dig into the source?
Would love to see more of your workflow.