I wrote an operating system so I'd have somewhere to run Doom.
Things I've built, in no particular order of sanity:
StinkOS — 32-bit x86 OS from scratch in C. Preemptive scheduler, a TCP/IP stack down to RFC 793, ELF userland, its own package manager. Zero third-party libraries in the kernel. Doom runs on it.
sonicheroes — decompiling Sonic Heroes for the GameCube, function by function.
macrocosm — dark matter particles coupled to a baryonic SPH fluid in expanding spacetime, volumetric rendering included. Pure C17.
SmartyRed & AwaLink — PPO agents learning Pokémon Red and Zelda: Link's Awakening from raw frames. One of them keeps track of roughly 1700 event flags. They are both very patient.
rinha-2026-zig — vectorized k-NN over a quantized IVF index. In Zig, without libc, on 0.40 of a vCPU.
Bixim — a Tamagotchi engine that runs on an ESP32 and on your desktop from the same codebase.
SignForest — real-time Libras recognition from a webcam.
Day job: IT Coordinator at WM Saúde (SMARTHOSP), CTO at AccessSim — AI + AR for architectural accessibility, picked up by Sebrae's Catalisa ICT — and a Master's in Intelligent Computing at UFS/LABIC.
Night job: everything above.
Achievement Unlocked: GitHub thought I was a bot
In June 2026, GitHub's anti-abuse system suspended my account. False positive — Support confirmed it. Apparently committing this much trips the automation. I choose to read this as a compliment.
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Urutau photo and Golden Boy clip belong to their respective authors. Code here is MIT.