After being abandoned for a long time I've managed to rewrite the app from Swift to Electron and make it much more stable/usable in the process. Probably has bugs, although should work reasonably well, enjoy
Note: Because I haven't paid Apple $100, the app isn't signed with a developer certificate and macOS will not let you open the app that easily. To launch for the first time (after copying the app from .dmg to Applications), you will need to right click it and select Open from the context menu. Subsequent launches should be fine.
