Andrew Healey 2 months ago

Building a Runtime with QuickJS

Building a tiny JavaScript runtime on top of QuickJS with timers, file I/O, and an event loop.

JavaScript Programming Tutorial

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Andrew Healey 3 months ago

Building a Shell

I built a tiny shell in C to learn what fork, execvp, and dup2 are doing under the hood.

Shell Tutorial Programming

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Andrew Healey 6 months ago

A Fair, Cancelable Semaphore in Go

Building a fair, cancelable semaphore in Go and the subtle concurrency issues involved.

Programming Go

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Andrew Healey 8 months ago

Compiling a Forth

A bytecode compiler and VM for a Forth-like language.

Open Source Programming

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Andrew Healey 10 months ago

Icepath: a 2D Programming Language

Sliding around a cave and hitting opcodes.

Programming Gaming

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Andrew Healey 10 months ago

Counting Words at SIMD Speed

Rewriting a word counting program five times until it's 494x faster.

Performance Programming

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Andrew Healey 10 months ago

Optimizing My Disk Usage Program

Increasing performance by reducing thread scheduling overhead and lock contention.

Programming Backend Performance

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Andrew Healey 10 months ago

Maybe the Fastest Disk Usage Program on macOS

A very fast du -sh clone for macOS.

Macos Performance Open Source

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Andrew Healey 11 months ago

Filesystem Backed by an LLM

FUSE filesystem where file operations are handled by an LLM.

Open Source Backend

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Andrew Healey 1 years ago

Solving Queuedle

Writing a game solver for Queuedle.

Gaming Programming

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Andrew Healey 1 years ago

How I Made Queuedle

A daily word-sliding puzzle game inspired by Wordle and Scrabble.

Web Development

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Andrew Healey 1 years ago

Visualizing Chess Bitboards

Brief introduction to chess bitboards and move generation with animations.

Data Visualization Programming Gaming

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Andrew Healey 1 years ago

Installing NPM Packages Very Quickly

Building a package manager with a fast install step.

Performance Tutorial Programming

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Andrew Healey 1 years ago

Building Game Prototypes with LÖVE

Chess, card games, and Lua.

Gaming Lua

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Andrew Healey 1 years ago

Compiling Lisp to Bytecode and Running It

Extending my Lisp compiler and adding a fast virtual machine.

Performance Programming

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Andrew Healey 1 years ago

Generating Mazes

Visualizations and techniques for different maze generation algorithms.

Data Visualization Programming Tutorial

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Andrew Healey 1 years ago

Making Python Less Random

Using ptrace to intercept and modify a process's getrandom syscall.

Python Security Programming

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Andrew Healey 1 years ago

2D Multiplayer From Scratch

Exploring patterns and systems for creating realtime browser games.

Tutorial Web Development

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Andrew Healey 2 years ago

Lisp Compiler Optimizations

Smaller programs that do less work.

Programming

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Andrew Healey 2 years ago

Lisp to JavaScript Compiler

Transpiling Lisp to JavaScript using Rust.

Rust Programming JavaScript

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