I was using SyncThing, and it worked, but any time you have an Obsidian vault open on two devices, or shortly after another, you're always thinking about if you're going to have to clean up a bunch of sync conflict files later. And that mental overhead is not worth saving $4/mo.
The conflicts are never hard: it's like a git merge conflict where you just take the latest of every conflict block.
The conflicts are never hard: it's like a git merge conflict where you just take the latest of every conflict block.