Independent developer based in Osaka, Japan.
I build practical tools around AI coding, developer workflows, and software systems, and write about what I learn at jasonyu.dev.
Current focus:
- AI-assisted development workflows
- Local-first developer tools
- Backend services, automation, and product experiments
- Notes from building in public
Selected projects:
- imtty - Telegram-first bridge for running and controlling local Codex sessions through tmux.
- supply-chain-safety-skill - Guardrails for dependency intake, package execution review, and local scanner workflows.
- flutter_clean_arch - Flutter clean architecture sample and patterns.
Writing: jasonyu.dev
Contact: hi@jasonyu.dev