Car Journal
RuStoreTake my own idea all the way to a published product — from hypothesis and first-version scope to a store release and user feedback.
Car owners rarely remember when the oil was last changed or how much the year cost them: the records scatter across notebooks, receipts and memory. The app keeps a full service and expense history and shows the whole cost picture.
- Product hypothesis and first-version scope
- Interface design
- Mobile development
- Store release and user feedback
A React Native (Expo) mobile app with file-based routing. Data lives in cloud PostgreSQL behind a typed Drizzle ORM access layer, request caching and syncing run on TanStack Query, and on-device storage keeps the app usable offline.








