alt Hacker Newsinteresting choice to use syncthing instead of rsync, given the OP is already comfortable with it. equally curious to see why it was not even mentioned nor discussed for regular readers/viewers.
my main concern with the setup was with the additional config required to make sure sleep states and other hw annoyances are in check. but it does help to have a well-supported linux machine as a base!
I install syncthing on ~all my devices and haven't yet touched rsync. Some reasons I prefer it:
1. It's automatic (sure, scripting regular rsync syncs probably isn't hard, but...)
2. It's p2p across all my devices (which from what I understand is not how rsync operates)
So as long as my laptop and my desktop are both turned on I can trust they're always fully up-to-sync with each other, and in my experience they always are.