Software for one hand.
The phone is the most intimate computer ever made — it's in the bed, on the street, at the funeral. Building for it well is a matter of manners as much as engineering.
The thumb is the user
Reachability, touch targets, forgiveness radius. I design for the commuter holding a coffee, not the mockup with a floating hand.
Battery is trust
An app that drains the battery is borrowing against the user's day. Efficiency isn't an optimization pass; it's the deal.
Offline is the baseline
Elevators exist. Tunnels exist. Software that panics without a signal was never finished.
- 01Kiel
A support system for autistic children and their families — routines, experts, progress.
React Native client plus Node backend: daily activity tracking, educational games, expert appointments and development reports. Capstone-born, product-shaped.
2025 · MobileShippedReact Native / TypeScript / Node.js / MongoDB / JWT