
pocket-pos
Mobile · Offline-firstAn offline-first point of sale for small shops. Rings up sales, tracks stock, and prints receipts entirely on-device. SQLite is the only source of truth, so no backend or outage can close the shop.
Small public builds, each one an excuse to understand something I hadn't before. All the code is open.

An offline-first point of sale for small shops. Rings up sales, tracks stock, and prints receipts entirely on-device. SQLite is the only source of truth, so no backend or outage can close the shop.

An audit trail for AI memory. Logs answers and their source citations, then flags past recommendations as suspect when the underlying facts get corrected.

Reconstructs why a product's features exist. Reads a repo's issues, PRs and releases into a typed knowledge graph that traces each feature back to its decision chain.

A force-directed graph of the AI developer job market, built from live postings. Extracts skills, roles and companies and maps how they relate.

Turns a PDF into a prerequisite-ordered quiz tutor. The answer key is architecturally isolated from the hints, and question order is enforced by graph topology, not prompting.
Simulates a medical sensor streaming raw PCM audio over HTTP, with a Web Audio player that buffers it. Built to test real-time resilience to latency spikes, outages and clock drift.