May 2025
Build an encrypted mesh texting device
Why a nearby text path should still exist when phones stop working, and what Blackout Comms does on the device: encryption at rest and in transit, signatures, and delivery that keeps trying.
Notes from the blog
Off-grid guides
Two of the longer Squarespace posts, rewritten as static pages. The build plans themselves stay on chatters.io, where the hardware instructions are maintained.
March 2025
Communicate in a grid outage
The security properties that matter when infrastructure is gone: asymmetric messages, ECDSA, and a hop pattern that is unique to the cluster.