Matt Keeter 2026-04-05T04:50:37Z https://mattkeeter.com/ A tail-call interpreter in nightly Rust 2026-04-05T00:00:00Z https://mattkeeter.com/blog/2026-04-05-tailcall Matt Keeter matt.j.keeter@gmail.com An x86-64 backend for raven-uxn 2026-03-15T00:00:00Z https://mattkeeter.com/blog/2026-03-15-uxn Matt Keeter matt.j.keeter@gmail.com zipzap 2026-02-15T00:00:00Z https://mattkeeter.com/projects/zipzap A tool for tracking and jumping into frequently-used directories Matt Keeter matt.j.keeter@gmail.com Caves of Qud: A review 2025-12-29T00:00:00Z https://mattkeeter.com/blog/2025-12-29-qud Matt Keeter matt.j.keeter@gmail.com Gradients are the new intervals 2025-05-14T00:00:00Z https://mattkeeter.com/blog/2025-05-14-gradients Matt Keeter matt.j.keeter@gmail.com A cautionary tale about continuity 2025-04-12T00:00:00Z https://mattkeeter.com/blog/2025-04-12-continuity Matt Keeter matt.j.keeter@gmail.com The Prospero Challenge 2025-03-24T00:00:00Z https://mattkeeter.com/projects/prospero Evaluate a 7866-clause math expression for fame and glory Matt Keeter matt.j.keeter@gmail.com Guided by the beauty of our test suite 2025-01-20T00:00:00Z https://mattkeeter.com/blog/2025-01-20-guided Matt Keeter matt.j.keeter@gmail.com Fidget 2025-01-08T00:00:00Z https://mattkeeter.com/projects/fidget Blazing fast implicit surface evaluation Matt Keeter matt.j.keeter@gmail.com Panic! At the Async Runtime Shutdown 2024-08-01T00:00:00Z https://mattkeeter.com/blog/2024-08-01-panic Matt Keeter matt.j.keeter@gmail.com Beating the compiler 2024-07-12T00:00:00Z https://mattkeeter.com/blog/2024-07-12-interpreter Matt Keeter matt.j.keeter@gmail.com Raven 2024-07-04T00:00:00Z https://mattkeeter.com/projects/raven A flexible Uxn + Varvara emulator Matt Keeter matt.j.keeter@gmail.com It's Free Real Estate 2024-03-25T00:00:00Z https://mattkeeter.com/blog/2024-03-25-packing Matt Keeter matt.j.keeter@gmail.com Reverse-engineering the Synacor challenge 2024-01-28T00:00:00Z https://mattkeeter.com/blog/2024-01-28-synacor Matt Keeter matt.j.keeter@gmail.com Hunting a spooky ethernet driver bug 2023-10-31T00:00:00Z https://mattkeeter.com/blog/2023-10-31-dma Matt Keeter matt.j.keeter@gmail.com Efficiently updating implicit in-order forests 2023-07-03T00:00:00Z https://mattkeeter.com/blog/2023-07-03-iforest Matt Keeter matt.j.keeter@gmail.com Machined Aluminum Pen 2023-04-27T00:00:00Z https://mattkeeter.com/projects/machined-pen A small project on the lathe Matt Keeter matt.j.keeter@gmail.com A simple adversarial model for dual contouring 2023-04-23T00:00:00Z https://mattkeeter.com/blog/2023-04-23-adversarial Matt Keeter matt.j.keeter@gmail.com Do Not Taunt Happy Fun Branch Predictor 2023-01-25T00:00:00Z https://mattkeeter.com/blog/2023-01-25-branch Matt Keeter matt.j.keeter@gmail.com A Neat XOR Trick 2022-12-10T00:00:00Z https://mattkeeter.com/blog/2022-12-10-xor Matt Keeter matt.j.keeter@gmail.com The Solid-State Register Allocator 2022-10-04T00:00:00Z https://mattkeeter.com/blog/2022-10-04-ssra Matt Keeter matt.j.keeter@gmail.com From Oscilloscope to Wireshark: A UDP Story 2022-08-11T00:00:00Z https://mattkeeter.com/blog/2022-08-11-udp Matt Keeter matt.j.keeter@gmail.com Writing a new XMODEM sender in 2022 2022-05-31T00:00:00Z https://mattkeeter.com/blog/2022-05-31-xmodem Matt Keeter matt.j.keeter@gmail.com Super Auto Sim 2022-02-20T00:00:00Z https://mattkeeter.com/projects/super Doing science on emoji battles Matt Keeter matt.j.keeter@gmail.com Ray tracing with M-reps 2022-02-11T00:00:00Z https://mattkeeter.com/projects/mrep A deep dive into weird linear algebra tricks Matt Keeter matt.j.keeter@gmail.com Brute-Forcing 22 Trillion Parameters 2021-12-27T00:00:00Z https://mattkeeter.com/blog/2021-12-27-brute Matt Keeter matt.j.keeter@gmail.com Every Seattle Store 2021-10-01T00:00:00Z https://mattkeeter.com/projects/seattle Based on an actual vacation Matt Keeter matt.j.keeter@gmail.com Foxtrot 2021-06-25T00:00:00Z https://mattkeeter.com/projects/foxtrot A fast STEP file viewer Matt Keeter matt.j.keeter@gmail.com It Can Happen to You 2021-03-01T00:00:00Z https://mattkeeter.com/blog/2021-03-01-happen Matt Keeter matt.j.keeter@gmail.com rayray 2021-02-26T00:00:00Z https://mattkeeter.com/projects/rayray A nifty GPU raytracer Matt Keeter matt.j.keeter@gmail.com Futureproof 2020-12-28T00:00:00Z https://mattkeeter.com/projects/futureproof A shader editor in Zig, WebGPU, and Neovim Matt Keeter matt.j.keeter@gmail.com Writing a SIGGRAPH paper (for fun) 2020-08-21T00:00:00Z https://mattkeeter.com/projects/siggraph Behind the scenes of a research paper Matt Keeter matt.j.keeter@gmail.com Pont 2020-05-30T00:00:00Z https://mattkeeter.com/projects/pont A multiplayer board game in Rust and WebAssembly Matt Keeter matt.j.keeter@gmail.com States Machine 2020-02-20T00:00:00Z https://mattkeeter.com/projects/states Learning the states with spaced repetition Matt Keeter matt.j.keeter@gmail.com Program synthesis with Z3 2020-01-30T00:00:00Z https://mattkeeter.com/projects/synthesis Teaching robots to jump Matt Keeter matt.j.keeter@gmail.com Erizo 2019-10-06T00:00:00Z https://mattkeeter.com/projects/erizo An even faster STL viewer Matt Keeter matt.j.keeter@gmail.com Elf Assembly JIT 2018-12-23T00:00:00Z https://mattkeeter.com/projects/elfjit A Very Merry Compiler Matt Keeter matt.j.keeter@gmail.com Quadratic Error Functions Explainer 2018-11-17T00:00:00Z https://mattkeeter.com/projects/qef Matrix math extravaganza! Matt Keeter matt.j.keeter@gmail.com Moon Jar 2018-09-22T00:00:00Z https://mattkeeter.com/projects/moon A glowing, charming gift Matt Keeter matt.j.keeter@gmail.com Tiny Planets 2018-07-04T00:00:00Z https://mattkeeter.com/projects/planets Graphics demo in Rust Matt Keeter matt.j.keeter@gmail.com Consistent Ordering of N-Dimensional Neighbors 2018-03-28T00:00:00Z https://mattkeeter.com/blog/2018-03-28-neighbors Matt Keeter matt.j.keeter@gmail.com Studio 2018-01-06T00:00:00Z https://mattkeeter.com/projects/studio Scheme-based design GUI with direct modeling Matt Keeter matt.j.keeter@gmail.com libfive 2018-01-06T00:00:00Z https://mattkeeter.com/projects/libfive Infrastructure for solid modeling Matt Keeter matt.j.keeter@gmail.com Compile-time version strings in CMake 2018-01-06T00:00:00Z https://mattkeeter.com/blog/2018-01-06-versioning Matt Keeter matt.j.keeter@gmail.com QEFs, Eigenvalues, and Normals 2017-11-22T00:00:00Z https://mattkeeter.com/blog/2017-11-22-eigen Matt Keeter matt.j.keeter@gmail.com Finding bounding boxes with interval math 2017-09-29T00:00:00Z https://mattkeeter.com/blog/2017-09-29-bounds Matt Keeter matt.j.keeter@gmail.com Fixing a soldering iron with 3D printing 2017-09-15T00:00:00Z https://mattkeeter.com/blog/2017-09-15-iron Matt Keeter matt.j.keeter@gmail.com 3D Rotation Design 2017-06-22T00:00:00Z https://mattkeeter.com/projects/rotation An interactive explainer Matt Keeter matt.j.keeter@gmail.com Zero-crossing logic for robust meshing 2017-05-13T00:00:00Z https://mattkeeter.com/blog/2017-05-13-implicit-zeros Matt Keeter matt.j.keeter@gmail.com Higher-order reactive graph programming 2017-03-10T00:00:00Z https://mattkeeter.com/blog/2017-03-10-higher Matt Keeter matt.j.keeter@gmail.com Lineage of CBA CAD tools 2017-01-09T00:00:00Z https://mattkeeter.com/blog/2017-01-09-lineage Matt Keeter matt.j.keeter@gmail.com Abstraction and instances in graph programming 2016-12-17T00:00:00Z https://mattkeeter.com/blog/2016-12-17-instances Matt Keeter matt.j.keeter@gmail.com Graphene 2016-09-06T00:00:00Z https://mattkeeter.com/projects/graphene Hierarchical computation graphs in Racket Matt Keeter matt.j.keeter@gmail.com Swingline 2016-04-30T00:00:00Z https://mattkeeter.com/projects/swingline Weighted Voronoi stippling on the GPU Matt Keeter matt.j.keeter@gmail.com Automatic tracking of bounding boxes 2016-04-10T00:00:00Z https://mattkeeter.com/blog/2016-04-10-bbox Matt Keeter matt.j.keeter@gmail.com Affine coordinates in Ao 2016-03-20T00:00:00Z https://mattkeeter.com/blog/2016-03-20-affine Matt Keeter matt.j.keeter@gmail.com Ao 2016-03-19T00:00:00Z https://mattkeeter.com/projects/ao Homoiconic f-rep kernel Matt Keeter matt.j.keeter@gmail.com DLP Slicer 2016-03-15T00:00:00Z https://mattkeeter.com/projects/dlp Fast voxelization in WebGL Matt Keeter matt.j.keeter@gmail.com Representation and JITting of math trees 2016-02-21T00:00:00Z https://mattkeeter.com/blog/2016-02-21-jit Matt Keeter matt.j.keeter@gmail.com Constraint solver 2015-10-30T00:00:00Z https://mattkeeter.com/projects/constraints Gradient descent in Haskell Matt Keeter matt.j.keeter@gmail.com spacewΛr 2015-10-13T00:00:00Z https://mattkeeter.com/projects/spacewar Lasers! Video games! Hardware! Matt Keeter matt.j.keeter@gmail.com 2D Contouring 2015-09-28T00:00:00Z https://mattkeeter.com/projects/contours An overview of various algorithms Matt Keeter matt.j.keeter@gmail.com Dataflow Engine 2015-07-31T00:00:00Z https://mattkeeter.com/projects/graph Designing with graphs Matt Keeter matt.j.keeter@gmail.com Antimony 2015-04-02T00:00:00Z https://mattkeeter.com/projects/antimony/3 A fresh look at CAD software Matt Keeter matt.j.keeter@gmail.com Bumpy 2014-12-17T00:00:00Z https://mattkeeter.com/projects/bumpy Homemade mp3 player Matt Keeter matt.j.keeter@gmail.com fstl 2014-03-26T00:00:00Z https://mattkeeter.com/projects/fstl Very fast .stl viewer Matt Keeter matt.j.keeter@gmail.com pixelsim 2013-11-27T00:00:00Z https://mattkeeter.com/projects/pixelsim Squishy pixel-art spaceships on the GPU Matt Keeter matt.j.keeter@gmail.com carvr 2013-08-27T00:00:00Z https://mattkeeter.com/projects/carvr Image resizing with seam carving Matt Keeter matt.j.keeter@gmail.com kokopelli 2013-05-01T00:00:00Z https://mattkeeter.com/projects/kokopelli Rethinking CAD/CAM Matt Keeter matt.j.keeter@gmail.com Accelerometer Poi 2013-03-20T00:00:00Z https://mattkeeter.com/projects/poi Glowing spinning toys Matt Keeter matt.j.keeter@gmail.com Arc Reactor & Repulsor 2012-10-30T00:00:00Z https://mattkeeter.com/projects/stark Halloween costume props Matt Keeter matt.j.keeter@gmail.com Simon Game 2012-08-01T00:00:00Z https://mattkeeter.com/projects/simon Made in the Moscow Fab Lab Matt Keeter matt.j.keeter@gmail.com Dual Load Cell ADC 2012-06-26T00:00:00Z https://mattkeeter.com/projects/loadamp An exemplar PCB Matt Keeter matt.j.keeter@gmail.com L-System Generation 2012-06-20T00:00:00Z https://mattkeeter.com/projects/Lsystem Tools for building and rendering fractals Matt Keeter matt.j.keeter@gmail.com Rotary Position Sensor 2012-06-11T00:00:00Z https://mattkeeter.com/projects/rotary Low-cost, simple capacitive sensor Matt Keeter matt.j.keeter@gmail.com Polar Pong 2012-06-10T00:00:00Z https://mattkeeter.com/projects/pong Pong with a twist Matt Keeter matt.j.keeter@gmail.com Longboard-Riding Robot 2012-05-15T00:00:00Z https://mattkeeter.com/projects/underactuated Modeling & control of an underactuated system Matt Keeter matt.j.keeter@gmail.com Website Workflow 2012-05-01T00:00:00Z https://mattkeeter.com/projects/webgen Markdown + Python + Git Matt Keeter matt.j.keeter@gmail.com Fab Solver 2012-04-30T00:00:00Z https://mattkeeter.com/projects/solver High speed computation geometry Matt Keeter matt.j.keeter@gmail.com Fab Boombox 2011-12-18T00:00:00Z https://mattkeeter.com/projects/boombox DIY portable audio Matt Keeter matt.j.keeter@gmail.com Slideclock 2011-10-27T00:00:00Z https://mattkeeter.com/projects/slideclock Time as linear motion Matt Keeter matt.j.keeter@gmail.com Playing card case 2011-10-07T00:00:00Z https://mattkeeter.com/projects/cards Laser-cut elegant box Matt Keeter matt.j.keeter@gmail.com Multitroids 2011-09-15T00:00:00Z https://mattkeeter.com/projects/multitroids Asteroids with a twist Matt Keeter matt.j.keeter@gmail.com Mandelbrot 2011-08-08T00:00:00Z https://mattkeeter.com/projects/mandelbrot Python vs Cython Matt Keeter matt.j.keeter@gmail.com Automatic Panorama Generation 2011-05-03T00:00:00Z https://mattkeeter.com/projects/arpan Computational quadcopter photography Matt Keeter matt.j.keeter@gmail.com LightQuad 2011-04-17T00:00:00Z https://mattkeeter.com/projects/lightquad Low-res interactive display Matt Keeter matt.j.keeter@gmail.com TouchClock 2010-12-30T00:00:00Z https://mattkeeter.com/projects/touchclock Interactive timepiece Matt Keeter matt.j.keeter@gmail.com ReRobot 2010-09-01T00:00:00Z https://mattkeeter.com/projects/rerobot Procedural exploration and platforming Matt Keeter matt.j.keeter@gmail.com Mudduino 2010-08-02T00:00:00Z https://mattkeeter.com/projects/mudduino Arduino clone for simple robotics Matt Keeter matt.j.keeter@gmail.com E11 Bot 2010-08-01T00:00:00Z https://mattkeeter.com/projects/e11bot Robotics for college freshmen Matt Keeter matt.j.keeter@gmail.com Flock 2010-06-01T00:00:00Z https://mattkeeter.com/projects/flock Swarms of lo-fi birds Matt Keeter matt.j.keeter@gmail.com Stopwatch ASIC 2010-04-19T00:00:00Z https://mattkeeter.com/projects/stopwatch VLSI final project Matt Keeter matt.j.keeter@gmail.com Colorful Spectrum Analyzer 2009-09-11T00:00:00Z https://mattkeeter.com/projects/spectrum Digital filters on an FPGA Matt Keeter matt.j.keeter@gmail.com Tunes 2009-05-01T00:00:00Z https://mattkeeter.com/projects/tunes Command-line iTunes interface Matt Keeter matt.j.keeter@gmail.com Longboard 2009-03-09T00:00:00Z https://mattkeeter.com/projects/longboard Homemade transportation Matt Keeter matt.j.keeter@gmail.com Growth 2008-03-08T00:00:00Z https://mattkeeter.com/projects/growth Procedural animation Matt Keeter matt.j.keeter@gmail.com