Tools and toys for people who care how things are made.

I'm Justin Gray — software developer, former NASA aerospace engineer, and machinist. I build vibe coding support kits for people who code with AI, software for the manufacuturing industry, fidget toys for people who appreciate precise machining. Which one are you here for?

Everything I'm working on

My Track Record

What I read (and why you should too)

These are the books that shaped how I think about precision, software, and making things