Development focus

Security & verifiability

Making events the server cannot observe directly — physical proximity, client-computed results — provable.

2 records

Swipenor: if the client computes the score, what does the server trust?

In development Beta

A swipe-based true/false trivia game; the real subject is not the game but making a client-computed score verifiable through a signature.

What it does today

The swipe-based true/false quiz runs end to end in its core loop as a mobile app; the score is produced on the client but verified server-side with a server_nonce and an HMAC signature. swipenor.com is the app's landing page, not the game itself.

Mobile app Laravel PHP PostgreSQL +6 more

July 2026 — Ongoing

Screen lock by Bluetooth proximity: present/absent is not enough

Became a product

A proximity lock that locks the machine when the device in your pocket walks away; it became the SignalLock menu bar app.

What it does today

Locks the macOS screen when the device you carry moves away; the call rests on a proximity assessment rather than a raw present/absent signal, so fluctuation no longer produces false locks. The menu-bar app is published and ready to install.

Open source Swift SwiftUI CoreBluetooth +3 more

March 2026 — May 2026