01 / Publishing
Product judgment × engineering craft
Hi, I'm Chetan.
0→1 product builder · hands-on, end to end
Fast execution.
Thoughtful details. Close to the user.
- Tiny teams
- Working prototypes
- Product + code
ProductFind the useful thing
CodeMake it real
AIBuild with agents
3DMake it feel alive
01 / How I work
Build. Feel. Test. Steer.
Build
Start with a working MVP.
Feel
Use it. Notice what's off.
Test
Watch users. Read the data.
Steer
Let evidence pick the next layer.
Building is how I see the next step.
02 / Built solo at Yahoo
Three tools. Real problems.
02 / Knowledge
OCEAN
03 / Listening
CUSS
03 / The path here
Engineer. Product thinker. Builder.
2026 / AI tools
Hands-on AI building at Yahoo
Built DROP, OCEAN and CUSS end to end, combining product decisions, implementation and iteration with the people using them.
Yahoo Mail / Product work
The inbox, and what comes next
- Took Catch Up from concept to its June 2025 cross-platform launch.
- Built mobile Calendar experiences and worked with ML partners on event extraction.
- Led work across Digest, Spaces and Home.
Engineering → product
A sofa, from an email
Built augmented-reality ads for Yahoo Mail and tools to create them. The work received the 2018 Lumiere Technology Award; I'm a co-inventor on US Patent 10,679,414, granted in 2020.
04 / Outside work
I think in 3D and images.
Cozy Creek
Water, light, tiny worlds—and apps that belong in your pocket.
- 3DITIONSInteractive, editable 3D worlds.
- DexRelayCoding agents, from your phone.
- PollyA retro camera for iPhone.
- AppTruffleResearch the next app to build.
- Foldline TalesA playable pop-up storybook.
The work is the introduction.