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Andrew Healey's Blog

@andrew_healey@robot.villas

Software engineering experiments and performance investigations.

Source: https://healeycodes.com/feed.xml

Homepage: https://healeycodes.com/

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Posts
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  • What Makes LLM Tokenization Slow? #AI #LLM #Performance

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    Sep 2, 2026
  • Adding Go's defer to the TypeScript Compiler #TypeScript #SoftwareEngineering #Programming

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    Aug 2, 2026
  • A Tiny Compiler for Data-Parallel Kernels #Compiler #SoftwareEngineering #DataParallelism

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    Jun 25, 2026
  • Building a Runtime with QuickJS #QuickJS #Runtime #SoftwareEngineering

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    Mar 26, 2026
  • Building a Shell #SoftwareEngineering #Programming #Shell

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    Mar 16, 2026
  • A Fair, Cancelable Semaphore in Go #GoLang #Concurrency #Programming

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    Dec 21, 2025
  • Solving NYT's Pips Puzzle #Puzzles #Games #NYT

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    Oct 18, 2025
  • Compiling a Forth #Programming #Forth #Compiler

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    Oct 6, 2025
  • Icepath: a 2D Programming Language #Programming #Software #Language

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    Aug 22, 2025
  • Counting Words at SIMD Speed #Performance #SIMD #Programming

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    Aug 13, 2025
  • Optimizing My Disk Usage Program #Software #Optimization #Performance

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    Aug 7, 2025
  • Maybe the Fastest Disk Usage Program on macOS #Software #Performance #macOS

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    Jul 31, 2025
  • Filesystem Backed by an LLM #AI #Tech #Software

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    Jul 7, 2025
  • Solving Queuedle #SoftwareEngineering #ProblemSolving #Games

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    May 31, 2025
  • How I Made Queuedle #SoftwareEngineering #GameDev #WebDevelopment

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    May 28, 2025
  • Visualizing Chess Bitboards #Chess #Programming #DataVisualization

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    Apr 13, 2025
  • Installing NPM Packages Very Quickly #SoftwareEngineering #Performance #DevOps

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    Mar 25, 2025
  • Building Game Prototypes with LÖVE #GameDev #IndieDev #Programming

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    Dec 31, 2024
  • Compiling Lisp to Bytecode and Running It #Programming #Lisp #Compiler

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    Oct 15, 2024
  • Generating Mazes #Algorithms #Programming #GameDev

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    Aug 8, 2024
  • Making Python Less Random #Python #Programming #Software

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    Jul 8, 2024
  • 2D Multiplayer From Scratch #GameDev #SoftwareEngineering #Multiplayer

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    Jun 30, 2024
  • Lisp Compiler Optimizations #Lisp #Compiler #SoftwareEngineering

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    May 30, 2024
  • Lisp to JavaScript Compiler #Programming #Compiler #Lisp

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    May 26, 2024
  • Adding a Line Profiler to My Language #Programming #SoftwareEngineering #Performance

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    Mar 26, 2024
  • Compressing CS2 Demos #SoftwareEngineering #Performance #Gaming

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    Mar 5, 2024
  • A Custom WebAssembly Compiler #WebAssembly #Compiler #SoftwareEngineering

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    Dec 30, 2023
  • Rendering Counter-Strike Demos in the Browser #Gaming #WebDev #Performance

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    Nov 20, 2023
  • Porting Boolrule To Rust #Rust #Programming #SoftwareEngineering

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    Aug 18, 2023
  • Running Untrusted Python Code #Python #Security #SoftwareEngineering

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    Jul 27, 2023
  • Building Family Websites #WebDevelopment #SoftwareEngineering #FamilyTech

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    May 29, 2023
  • My Own Python Web Framework #Python #WebDev #Software

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    Feb 22, 2023
  • My Time At The Recurse Center #RecurseCenter #Community #SoftwareEngineering

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    Feb 14, 2023
  • Sandboxing JavaScript Code #JavaScript #WebDev #Security

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    Feb 12, 2023
  • Implementing Highlighting, Search, and Undo #SoftwareEngineering #DevTools #Programming

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    Jan 30, 2023
  • Making a Text Editor with a Game Engine #SoftwareEngineering #GameDev #Programming

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    Jan 25, 2023
  • Profiling and Optimizing an Interpreter #SoftwareEngineering #Performance #Optimization

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    Jan 19, 2023
  • Adding For Loops to an Interpreter #Programming #SoftwareEngineering #Interpreter

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    Jan 16, 2023
  • A Personal File Share CLI #Software #CLI #DevTools

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    Dec 27, 2022
  • CodeGuessr #SoftwareEngineering #Coding #Tech

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    Nov 20, 2022
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