Local first

Willow - Home

Peer-to-peer protocols which scale up, down, and sideways. Sychronisable data storage, fine-grained access control, private and efficient synchronisation, and secure data delivery by any means possible.

Building More Resilient Local-First Software with atproto | jakelazaroff.com

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

Local-first Software

Exploring software architecture that returns data to users and enables collaboration in every tool.

y-atproto - npmx

A [Yjs](https://yjs.dev/) CRDT provider that syncs documents over the [AT Protocol](https://atproto.com/). Documents are stored as ATProto records and real-time updates are delivered via [Jetstream](https://github.com/bluesky-social/jetstream).

The CRDT Dictionary: A Field Guide to Conflict-Free Replicated Data Types - Ian Duncan

A comprehensive guide to CRDTs and their tradeoffs, from counters to sequences. Written in the spirit of the Typeclassopedia, exploring how different CRDTs solve the distributed consensus puzzle.

Peritext: A CRDT for Rich-Text Collaboration

Collaboration on rich text is hard to model with plain-text approaches. We review the challenges and how to construct a CRDT for rich text.

A Local-First Task Framework

Industrial research lab working on digital tools for creativity and productivity.

My self-sovereign / local / private / secure LLM setup, April 2026