A journal for
people who ship.

Signal is a tech journal for engineers who care about the details — the ones that break at 3am, and the ones that keep systems running quietly for years.

Expect writing on security, distributed systems, cryptography, developer tooling, and the occasional post-mortem. No sponsored posts. No AI-generated slop. Just field notes.

Written and maintained by one person. Reach out at hello@signal.dev.