Where do algorithms live? C++ STL: free functions over iterators. Rust: on the slice. I built a 76-line Slice class to feel the difference. Contiguous containers hand it out and inherit sort/find/contains for free. Bonus: binary_search on unsorted data is a compile error. lmilz.dev/blog/2026/06...

Obsidian graphs only show Markdown. My knowledge also lives in C++, Rust, and Bazel. Built Synapse in Go to make the whole graph visible. No DB, no external deps, D3.js in the binary. The three bugs that only real data reveals were the most interesting part: lmilz.dev/blog/2026/06...

Built Synapse: a knowledge graph for my whole monorepo. Markdown wiki-links, C++ includes, Rust modules, Bazel deps. One interface, six file types, no database. github.com/lmilz/synapse

I had a note: use a tag type to distinguish iterators between containers. Six months later I couldn't reconstruct why. The fix: write the note as comments inside the code. The note and the proof in the same commit. My Second Brain is a monorepo. lmilz.dev/blog/2026/05...

Today I found my own HN post about STM32 in my RSS feed. Had to do a double take. The feed is recommending me to myself. Kind of strange but also kind of cool.

🚀 Just published my HUB75 LED Matrix Library for ESP32! API for driving RGB LED panels (16x16 to 64x64) with support for different scan rates. Built as an ESP-IDF component: easy to integrate.

Half my C code is defensive checks. Null pointers? Check. Bounds? Check. Invalid states? Check. Rust's compiler caught a matrix dimension bug before I could even run tests. Zero runtime cost. New article on error handling strategies in automotive: lmilz.dev/blog/2025/12...

I’m currently diving into Neovim, Rust and functional programming. It’s a lot of fun exploring these tools and ideas more deeply and improving my setup step by step. Learning never stops.

In my new blog post, I tell the journey from print-debugging to building tests that guide design and why this shift fundamentally changed how I write and refactor code. Maybe it will resonate with you too. 👉 Read it here: tinyurl.com/426sru8f