I write software that talks to hardware — operating systems, firmware that runs on telescopes and 3D printers, and image-processing pipelines for light that's been traveling for millions of years. I work close to the metal and I like it there.https://geekastro.dev/https://geekastro.dev/blog/doppler-drift-technosignatures/https://geekastro.dev/blog/doppler-drift-technosignatures/Most SETI pipelines hunt for Doppler-drifting signals — but a sufficiently advanced civilization might cancel its own drift. A small framework for thinking about Doppler-invariant technosignatures.Thu, 22 May 2025 00:00:00 GMThttps://geekastro.dev/blog/kobra-marlin-port/https://geekastro.dev/blog/kobra-marlin-port/The Anycubic Kobra Neo ships with a closed firmware on an HC32F460. Here's what it took to get Marlin 2.1.x running on it — TFT, bed leveling, input shaping, the works.Wed, 22 Apr 2026 00:00:00 GMThttps://geekastro.dev/blog/planet-deconv/https://geekastro.dev/blog/planet-deconv/Research code, not a finished tool — a U-Net trained against PIPP / AutoStakkert outputs, exploring whether you can get stack-quality detail without keeping every frame.Tue, 05 May 2026 00:00:00 GMThttps://geekastro.dev/blog/system7-three-days/https://geekastro.dev/blog/system7-three-days/Reverse-engineering System 7 binaries with Ghidra and an LLM, validating in QEMU, and ending up with a bootable prototype in 72 hours.Wed, 24 Sep 2025 00:00:00 GMThttps://geekastro.dev/blog/welcome/https://geekastro.dev/blog/welcome/Why I rebuilt geekastro.dev from the ground up — and what's coming next.Wed, 13 May 2026 00:00:00 GMThttps://geekastro.dev/blog/wowee-from-scratch/https://geekastro.dev/blog/wowee-from-scratch/WoWee is a from-scratch open-source WoW client. Here's the why, the tech stack, and the reason it just got picked up on Hackaday.Fri, 20 Feb 2026 00:00:00 GMT