A slow learner's notes on software, animation and other things.
Reconstructing the Esper machine
A frame-accurate teardown of Blade Runner's photo-zoom UI — what the interface actually computes, why the "enhance" is less magic than the internet thinks, and a working rebuild in 1.2k lines of WebGL.
Reconstructing the Esper machine
A frame-accurate teardown of Blade Runner's photo-zoom UI, rebuilt in 1.2k lines of WebGL.
The embedding store that fit in an mmap
Trading a vector database for a flat fp16 file — and why p99 lookups dropped from 4.1ms to 0.6ms.
Chasing a NaN through a fused softmax kernel
Three lines of guard code, one weekend, and a small lesson about trusting your own math.
Rotary embeddings, derived by hand
I was off by a transpose for a week. Here is the geometry that finally made it click.
Offline-first sync without the tears
How Pet Fellows keeps a match queue consistent across flaky connections and two app stores.
Drawing with a model, not against it
Notes from animating hand-inked frames — where automation helps and where the pen still wins.
Things that shipped, written up in full.
A short shelf of projects that made it out the door — each with a build log covering what worked, what broke, and what I'd do differently.
