A Persian calendar that treats privacy as a feature, not a footnote. I owned the whole lifecycle: market discovery, the PRD, and delivery.
One engine, every platform. All calendar logic lives in a single Rust engine shared by the iOS app, the PWA, Android and native targets, so a date means the same thing everywhere.
Agents build the clients, I govern the architecture. Agentic AI workflows ship the Swift (iOS) and Svelte (PWA) clients on top of the Rust core, while design tokens, interfaces and a strict engine/UI separation keep generated code in line. I wrote the month-resolution algorithm as a spec and translated it directly into the engine.