Comment by kn8

I recently blogged about using CRDTs in building privacy focused software, e.g. how would one approach building an end-to-end encrypted Google Docs: https://www.kn8.lt/blog/building-privacy-focused-collaborati...

The nice thing about CRDTs is that each individual message can be end-to-end encrypted (like WhatsApp messages), and then re-merged by all the clients locally.

A local-first database with such an encrypted sync property would would be amazing for building lots of apps with the ability to sync data between users or between your devices seamlessly. The challenge I ran into my initial experiments is that CRDTs need to be compacted/merged in various ways to stay efficient, but encryption gets in the way of that a little when considering server backups / high availability.