Hi, I’m Koyama
I develop desktop apps, mobile apps, browser extensions, and websites.
Selected work
Works.
Showing 6 of 6 projects
What I believe
Creed
“Get just 1% better every day, and in a year you’ll be 37.8 times better.”
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About me
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I build apps, grow vegetables, and love Japanese pop culture.
I’m Koyama. I build desktop apps, mobile apps, websites, and browser extensions, and I share what I learn on X, note, and YouTube.
Outside of work, I grow vegetables hydroponically, like okra and komatsuna. I’m also a big fan of Japanese subculture, especially anime, the game Azur Lane, and VTubers.
Social networking services
SNS
Where I’m headed
Goal
“I build apps in Japan, and I want them to make an impact on people all over the world.”
Hokusai’s The Great Wave off Kanagawa went on to inspire painters and composers around the world, from Van Gogh to Debussy.