/ ABOUT JASON
Jason Yu
Software Engineer / Builder
Osaka, Japan
I build software, systems, and small experiments.
This page is the human context behind the work: what I care about, what I am exploring, and how I keep learning in public.
Current focus and interests
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NOW
Building useful things
Developer tools, local-first workflows, and product experiments that can grow beyond a repository.
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WORK
Designing reliable systems
Backend architecture and infrastructure that remain understandable as they scale.
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WRITING
Learning in public
Documenting what I built, what broke, and the trade-offs that shaped the result.
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OFFLINE
Games, Japan, and curiosity
Exploring game development, life in Japan, reading, and whatever is interesting enough to learn next.