I try to understand intelligence by building with it — and by taking it apart.
Product engineer · San Francisco
3tobiasfu@gmail.com-
Grove APP STORE · macOS & iOS AI knowledge workspace. Most of it written by an agent loop I run: I write the spec, nothing lands unless it builds and passes tests. Case study → -
Fieldnote APP STORE · iOS A plant journal. Identifies plants with CoreML on-device — no round-trips, works offline in the field. Case study → -
Capsule macOS · DOWNLOAD Working memory for your menu bar. Each capsule holds one context — links, notes, half-done todos — and remembers where you left off. Case study → -
sus. APP STORE · iOS From prototype to production. A social app by Lawrence Liang, prototyped in React Native. Building the first stable version in Swift for iOS while he runs go-to-market. Case study → -
Terrarium iOS · IN DEVELOPMENT A map you clear by walking. Fog covers your city and lifts as you explore; it suggests a park or market worth heading toward. Case study → -
Plein Air APP STORE · iOS Stand where the Impressionists stood. 140+ paintings pinned to the spots they depict, across 14 regions — flip any one to set the artist’s canvas beside the same view today. Case study →
Illustrations after John James Audubon & Pierre-Joseph Redouté