I’ve been using Syncthing on some Windows boxes, and just added it to a NAS running on an Odroid HC2 and Armbian linux.
It came up and ran okay after a little experimentation, but the GUI has a yellow bar across the top that says “DEV” at the left. In the center is “JS” and some numbers with errors and warn. I’m assuming it’s some kind of error count.
Also, under the This Device info, the Version shows “unknown-dev, Linux (ARM)” instead of a known flavor. I suspect the bar is some kind of developers tool and goes away with known versions.
Everything seems to be working other than this. In fact, the first directory I added finished so fast I didn’t believe it.
Is the yellow bar of any significance, can I just ignore it, or is there a way to turn it off?