Builds, devices, components, supply chains, and the physical edges of trust.
Guest technical desk
Technical
Corner
Field reports and deep dives from builders, maintainers, researchers, and security practitioners.
On the bench
Original technical contributions and carefully attributed guest reprints, with editorial material kept clearly separate.
Security · Seeds · Multisig
Bring Your Seed to the Device
Multisig should diversify how your keys are born, not just the logos printed on the boxes that hold them.
Protocol · Seeds · Recovery
BIP39 and Bitcoin Core: what the public record actually says
An examination of the documented objections, support for interoperability, and questions that deserve clarification today.
AI · Hardware · FOSS · CNC
I Have No Idea What the Ones and Zeros Are Doing, but I Made Them an Elm House
A construction guy, a crew of AI agents, an open-source Bitcoin signer, and forty dollars of electronics living in elm.
Security · Seeds · Recovery
Your Wallet Is Temporary. Your Seed Is the Savings Technology.
Hardware wallets break. The seed and a practiced recovery plan have to outlive them.
Hardware · FOSS
The DIY Signing Device Revolution is Just Beginning
Keith Mukai on the Specter DIY, SeedSigner, and Krux collaboration.
The open lanes
Libraries, implementations, developer practice, and open-source collaboration.
Specifications, interoperability, consensus, and the tradeoffs beneath the interface.
Threat models, custody, privacy, failure analysis, and defenses that survive contact.