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260 Posts
Software Developer based in Tokyo, Japan.
Ruby, Rust, C, Dreamcast, Mega Drive, Judo, Brazilian Jiu Jitsu
Soba noodles for lunch at Shirakawago, in Kawasaki
FUK 🛫 HND. Fukuoka is an amazing city! I enjoyed it a lot for the past week but it’s now time to head back 😭
I’m at #fukuokark05
Is all over! #rubyconfth2026 is done! It was amazing! Hopefully see you again soon #rubyconfth
At #rubyconfth @okuramasafumi on stage to tell us metaprogramming isn’t real!
Day 2 of #rubyconfth has started!
It’s started! #rubyconfth
I was at Chrono Trigger Orchestra Concert tonight. It was amazing and I loved it!
I have also made a super-minimalist text-only presentation-tool demo. This may not be so impressive to look at, but it has to start somewhere 😂

This is a tiny character-based game that's running on the Sega Master System emulator. It's written in Ruby, then compiled to mruby bytecode, and my super-incomplete VM for Z80 can run it 😆

https://codeberg.org/yujiyokoo/mrubyz