An expense-sharing app, Splitwise-style: split bills, track who owes what across groups and one-on-one, settle up. My brother Adnan and I build it for ourselves, and it runs on a home server rather than anything cloud. I own the frontend — the React app, its routing and data layer, the PWA shell. The piece I’m working on now is receipt parsing: point a vision model at a photo of a receipt and get back merchant, total, and line items instead of typing them in. That one’s backend-only so far, on a branch, not finished.