> seafile … and nextcloud … their license is problematic
There’s nothing problematic about the AGPL, really. It protects users. It protects developers against someone taking over their projects. The only people it bothers are those who wish to take a free software project and integrate with an unfree one. That seems like a feature to me!
I even emailed Stallman about it. The only way to make a proprietary version of an AGPLv3 project is to pay the original copyright holders for a special proprietary licensing deal, thereby supporting its development. Forks don't have the same privilege.