atproto has the potential to become a rock-solid replacement for the most fragile part of any local-first app: the sync server.

Homomorphic encryption allows a computer to run programs on encrypted data. Learn how homomorphic encryption works through interactive examples, build a homomorphically encrypted CRDT and see whether it has promise for local-first software.

How I built a local-first app for planning trips, and what I learned about the current state of the local-first ecosystem along the way.

State-based CRDTs grow monotonically, but that doesn't mean they can't be efficient. We'll learn how to compress the pixel editor state by 98%.

CRDTs sound cool, but how are they actually used? Let's learn by building a collaborative pixel art editor.

CRDTs don't have to be all academic papers and math jargon. Learn what CRDTs are and how they work through interactive visualizations and code samples.