I tried looking around but this humble soul doesn’t have much in the way of receiving donations. I suggest contacting him via https://github.com/Catfriend1 to ask for an alternative and if he gets back to you, share it here for other people who dislike paypal.

Fyi the syncthing-fork guy (catfriend1) who’s still updating has a donating button on F-droid via Liberapay. It’s up to you if your financial situation allows you to donate, but the more of us help the remaining developers for their time, in particular those of us that rely so much on their work, the better off we’ll be. Let’s give them a little motivation to keep working on this.

FYI2 syncthing-fork (as written and confirmed in this thread) has an import button for your folders from syncthing Android.