I built a simple WebDAV server with Sabre to sync Devonthink databases. WebDAV was the only option that synced between users of multiple iCloud accounts, worked

I built a simple WebDAV server with Sabre to sync Devonthink databases. WebDAV was the only option that synced between users of multiple iCloud accounts, worked anywhere in the world and didn’t require a Dropbox subscription. It’s a faster sync than CloudKit. I don’t have other WebDAV use cases but I expect this one to run without much maintenance or cost for years. Useful protocol.