About

I’m Sky Yoo, a software engineer. I like building the whole of a thing, and I care more about how it’s built than what it’s built in. Three commitments, whatever the project:

Correctness you can check. I’d rather ship one answer you can defend than ten that only look impressive.

The tool answers to the person using it. I’d rather it tell you something inconvenient and true than something pleasing and wrong.

It should still work in ten years. Plain formats, few moving parts, nothing that has to phone home for your work to open.

Right now that mostly means Mainspring, a financial-independence planner that runs on your own machine — one project among (I hope) many.

Away from the keyboard I keep field notes and a commonplace book, both here if you’re curious.

The look of this study is borrowed from horology on purpose: a good watch keeps correct time for decades without ever asking for your attention — about the highest standard I know to hold software to.