Yes! It started out by me building/designing it with my own blood sweat and tears (this is probably the 3rd or 4th serious attempt at a language), until I started toying around with Codex (uggh), then eventually Claude Code. I used the language for the first time to solve many of 2026 Advent of Code puzzles for the first time last year.
At this point, it's mostly for fun, educational purposes and an attempt to build the smallest, but generally useful language with a good balance of dynamic performance, native code compilation, self hosting and a language that is both easy to learn and easy to understand it's design and implementation.
Essentially µ is a language that has a dual runtime, Interpreter + Native code.
I've also experimented with building a full UNIX(ish) OS and Kernel in Mu itself. So that means, about ~2k Assembly, the rest in Mu. It's at about a 80/20 (Mu/Asm) and works fairly well!
I like it. What’s the safety/memory story? How much of it would you say is Claude vs you at this point? How good is Claude at writing code in the language itself?
Yes! It started out by me building/designing it with my own blood sweat and tears (this is probably the 3rd or 4th serious attempt at a language), until I started toying around with Codex (uggh), then eventually Claude Code. I used the language for the first time to solve many of 2026 Advent of Code puzzles for the first time last year.
At this point, it's mostly for fun, educational purposes and an attempt to build the smallest, but generally useful language with a good balance of dynamic performance, native code compilation, self hosting and a language that is both easy to learn and easy to understand it's design and implementation.
I call it Mu (µ) lang. You can find it at https://mu-lang.dev
Essentially µ is a language that has a dual runtime, Interpreter + Native code.
I've also experimented with building a full UNIX(ish) OS and Kernel in Mu itself. So that means, about ~2k Assembly, the rest in Mu. It's at about a 80/20 (Mu/Asm) and works fairly well!
I like it. What’s the safety/memory story? How much of it would you say is Claude vs you at this point? How good is Claude at writing code in the language itself?