Imo Thunder has the best design out of every app I tested, but the development is slow. Iirc some moderation actions are still not available.
I then switched to Summit after the dev open sourced it a few years ago. The dev is very active and friendly.


















I found this, which adds additional text to the existing licenses to prohibit training an AI on the licensed code: https://github.com/non-ai-licenses/non-ai-licenses
Though, per OSI’s definition, your code probably would no longer be open source, since training an LLM is technically considered a field of endeavour:
OSD number 6: