Was anyone able to make some progress on this? I’m a new user still evaluating Joplin to replace my Evernote usage, and my mobile devices are all Android, so background sync is mission critical for me. I haven’t done too much React development, but I’d be very willing to contribute some code for this. I love everything else about Joplin so far, and I was quite surprised to find that background sync is not already a feature for all platforms, particularly Android.