For seventy years we taught machines to read everything about us except us. Our words, our clicks, our faces — and none of it told them how we were doing while we used them. The edge moved. Today we're opening applications for the people who get to build on the other side of it.
You build on the Human State Interface (HSI) — our open, on-device standard that reads the signal in how you interact (focus, load, recovery) and never what you type. It's a new sense to build on: an agent that knows when to interrupt, a tutor that slows when you're overloaded, a tool that notices the tenth hour instead of helping you go off a cliff.
What a Founding Builder does
HSI fundamentals and the SDK, with something real running in your first 30 minutes.
Actual apps on the Flutter SDK, React SDK, REST API, or Life API. Starter templates, open-source examples, staffed office hours, a private Discord.
Monthly Demo Days. Ship small, ship often, show the room.
Founding Builders get first access to Statecraft, our in-person hackathon in Montréal, where you'll arrive already knowing the tools and each other.
The code we build by
This power comes with five rules — break them and the cleverest build is out.
How you interact, not what you type.
Change, honestly named — no labels, no verdicts.
State stays on-device by default; nothing reads it without a clear yes.
Built for people's hardest days, never to make anyone feel watched.
We serve judgment, never override it.
Why "Founding" means something
Roughly twenty people. You get the earliest SDKs, a direct line to our engineers, a Founding Builder badge, and your name on the wall of the people who got here first. Years from now, being a Founding Builder should mean what early contributor means on any platform that mattered — because your work is what taught everyone else what this primitive was for.
~20
Founding Builders, invite-first
Under two minutes. Tell us who you are, point us at your GitHub, and tell us what you'd build.
