Thanks a lot! Glad to hear it fits your needs.

For a clean, documentation UI, the best open-source options right now are probably Swagger UI and ReDoc. FastOpenAPI uses both by default:

- Swagger UI: interactive, lets you try out endpoints live. - ReDoc: more minimalist and professional-looking but static.

If you're looking for something different, you might check out RapiDoc, which is also open-source, modern, customizable, and supports interactive API exploration.