Systems from scratch

Rebuilding real systems (Git, a shell, grep, HTTP, Kafka, BitTorrent, an interpreter, a ray tracer) to understand them.

Related work

• mops-cli Apr 2026MOPS, the Multipurpose Operations CLI: a lightweight C utility for MLOps and DevOps work, covering system diagnostics, background tasks and cloud operations.
• zed-pdf-lsp Mar 2026Language server that lets the Zed editor show PDFs as Markdown.
• Makefile demo Oct 2025Three progressively richer examples of using Make, from minimal to advanced.
• Java 2D game engine Jan 2025Small 2D game engine in Java.
• GorillaZip Nov 2024Compression utility written in Go.
• PPM to PNG converter Jul 2024Converts PPM images to PNG in C++ with libpng.
• pydumper Feb 2025Educational dumping scripts in Go and Python.
• filter_htmltag Jan 2025Go project by Meaww2 that he contributed to.
• Build your own Kafka Sep 2024Toy Kafka clone that speaks the Kafka wire protocol (CodeCrafters).
• Blockchain in Kotlin Jul 2024First blockchain, following a “Build your own X” tutorial.
• Build your own HTTP server Jul 2024HTTP/1.1 server that serves multiple clients (CodeCrafters).
• Lox interpreter Jul 2024Interpreter for the Lox language (CodeCrafters “Build your own interpreter”).
• Ray Tracing: The Next Week Jul 2024Study implementation of “Ray Tracing: The Next Week”.
• Ray Tracing in One Weekend Jul 2024Study implementation of Peter Shirley's “Ray Tracing in One Weekend”.
• Ray Tracing: The Rest of Your Life Jul 2024Study implementation of “Ray Tracing: The Rest of Your Life”.
• Build your own BitTorrent Jul 2024BitTorrent client that parses .torrent files and downloads from peers (CodeCrafters).
• Build your own grep Jul 2024grep with a hand-written regular-expression engine (CodeCrafters).
• Build your own Git Jul 2024Small Git implementation: init, objects, commits and cloning (CodeCrafters).
• GoogleTest sample Jun 2024Using GoogleTest with CMake.
• Build your own shell Jun 2024POSIX-style shell with builtins and external commands (CodeCrafters).
• donut.go Oct 2023The spinning ASCII donut, in Go.

@prefix id: <https://ask.chaipat.cc/id/> .
@prefix rdf: <http://www.w3.org/1999/02/22-rdf-syntax-ns#> .
@prefix cj: <https://ask.chaipat.cc/ns#> .
@prefix rdfs: <http://www.w3.org/2000/01/rdf-schema#> .

id:ThemeSystems
    a cj:Theme ;
    rdfs:label "Systems from scratch" ;
    cj:description "Rebuilding real systems (Git, a shell, grep, HTTP, Kafka, BitTorrent, an interpreter, a ray tracer) to understand them." .