Eyo! onisaint here. I am a product engineer, I design and build products.I ask a lot of why. Nerdy about coffee, books, anime, badminton, and solo travel. Opinions are my own.

random stupidity・
design work
noises having meanings・politics and religion
rabbit hole・marry me
talk to me・

writings

22 Mar 2026

Humanity as a measure

what to measure of a bored man?
01 Jan 2026

A Dream

A farm of sunflowers
13 Dec 2025

Test User Feature, Not code

Only the guy who worte the code like it, true story!
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useful things

Weeks on earthwebsite
Reactive storegithub ・ jsr.io
Validate emailgithub ・ jsr.io
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前進

Go forward

Ahhhh!

found bugs

08:18:18

22 Mar 2026 India [ 21.64% complete ]