Michael J Petrie
Dad, founder, programmer, and fitness enthusiast, based in Japan.
I build successful businesses that solve real-world problems.
Bullish on coding agents to quickly iterate and create high-quality software.
My current goals include trying to get below 13% body fat, building a business that makes money online, becoming financially independent, supporting my family and becoming a great father.
Things I’m interested in right now:
- massively parallel agentic coding
- iterating on many startup ideas
- finding problems worth solving
- music and audio, with namagen
- low-level, “handmade” programming
Recent writingAll posts →
- A change in direction Six years on a handmade passion project, one week on an app built from my phone, and what I’m doing differently from now on.
- Writing a lock-free ring buffer for the audio thread Why the audio callback can never wait, and the 60 lines of C that keep it fed.
- Shipping an iOS app in a week Notes from building Ultimate Kami almost entirely by voice, on a phone, with a newborn asleep on my chest.