Which license for closed-source application?

That is of course an option…

If you don’t use LLMs (like me): The Term of Service from WordPress.com are licensed under the CC-BY-SA. Of course, not all of it applies in that form to your application. But it could serve as a starting point for your own, like it was for Kreya.app.

github.com

GitHub - Automattic/legalmattic: Democratizing WordPress.com legalese since 2014!

Democratizing WordPress.com legalese since 2014!