All notes
EngineeringJun 1, 2026·6 min read

Why we built mobile-first when everyone else chose web

Most builders open Saturn on a laptop. We still designed the core loop for a phone. Here's why.

Ideas don't wait for a desk. They arrive on a walk, in a queue, on the train. We wanted Saturn to catch them the instant they land.

Designing the build loop for a phone forced a discipline that made the desktop experience better too: fewer controls, clearer states, one obvious next step.

The lesson kept repeating — constraints upstream make the whole product calmer downstream.

S
The Saturn team
Building software you can talk to

More from the Saturn