While DAVx⁵ is a client-server sync tool we often get questions if there is a possibility to sync in server to server. We had a nice talk today with the creator Hugo 雨果 (npub1tly…m0qm) from pimsync who does work on a tool that does exactly that.
Check out the project here if you're interested:
https://pimsync.whynothugo.nl/
We also added it to our FAQ: https://www.davx5.com/faq/synchronization/how-can-i-synchronize-entries-between-servers