Personal finance tracker built with React -- track subscriptions and financial records, visualize spending with treemaps, beeswarm charts, circle packs, and Sankey diagrams. Google Sheets sync, multi-currency support, dark mode, and mobile via Capacitor.

GoGoCash (GGC) ERC-20 token contract built on OpenZeppelin, with deep architecture and developer documentation.

Agentic Commerce Protocol (ACP): Next.js 16 API + product pages for GoGoCash AI Shopping Assistant, with Firestore search, affiliate tracking, and cashback.