If Syncthing is currently running, this app will first destroy the existing configuration without warning and then want to set everything up again. Hands off!
Sadly, this project has been abandoned for over 3 years now. Since then Syncthing's API has changed and as a result several features of this app are broken. Some finessing is required to get it to interact with a preexisting Syncthing install at all, as it tries to load/create Syncthing config files at an incorrect directory and uses the wrong port for the web API. Integration with Nemo (Mint 22 Cinnamon's file explorer) is also entirely broken. I have found
Using Linux Mint 21.3, this version works fine but if you leave it running for a long time it starts to use too much RAM, I got to use up to 3GiB and the PC started to run too slow when using swap because the syncthing-gtk had used all the available ram. I had to uninstall it, it's a pity because I found the integrated notifications useful.