Open source
worth your time.

Every day a few hundred repos show up on GitHub. I read the READMEs, keep the handful that matter if you build with AI, and write down what they actually do.

Latest finds

33 so far

No. 033 · Nov 9, 2026

Unpacking more than the disk holds

GNU tar ran out of space unpacking a 385.9 MB .tar.gz onto a disk with 473.9 MB free. HatchZip finished in 1.0 s with a peak of 362.1 MB, because it punches holes in the archive as it decodes. Numbers are from its own docs.

xevrion/hatchzip

No. 032 · Nov 8, 2026

Casper eats install space

Arjun-Ingole/hop

No. 031 · Nov 7, 2026

42 journal syncs, not 480

recursive-ai-oss/onelite-csharp

No. 030 · Nov 6, 2026

The 26 ms scheduler wait

valentderah/totk-pc-recomp

No. 029 · Nov 5, 2026

Where the speedup stops

debuffjp/spryte

No. 028 · Nov 4, 2026

A stopped agent can still finish

Balanov/skein

No. 027 · Nov 3, 2026

Not every format decodes in place

sdcb/SimdCodecs

No. 026 · Nov 2, 2026

Agent can wave off human review

t3dotgg/tstack

No. 025 · Nov 1, 2026

A Rust skill backfires on Bevy

morganlinton/BeautifulRust

No. 024 · Oct 31, 2026

Fake evidence planted for LLM agents

qybaihe/bla

No. 023 · Oct 30, 2026

AV1 video, zero frames back

andyhuo520/digital-human-koubo

No. 022 · Oct 29, 2026

Coding agents that add co-op to games

cranebeaker/coop-anything

No. 021 · Oct 29, 2026

Poking every neuron in a small model

lyramakesmusic/neuron-explorer

No. 020 · Oct 27, 2026

Rust rebuilds in milliseconds, not seconds

indexable-inc/blaze

No. 019 · Oct 27, 2026

Ready-made UI parts for agent apps

deeplethe/solid-glass

No. 018 · Oct 26, 2026

Spotting new AI names before Google does

zhuyansen/new-term-radar

No. 017 · Oct 26, 2026

An AI tutor that tests you first

amosblomqvist/learnharness

No. 016 · Oct 25, 2026

A Personal AI Agent on Cloudflare's Free Tier

rociiu/talorys

No. 015 · Oct 24, 2026

Reverse Engineering Without the MCP Bloat

aicodeking/leanrea

No. 014 · Oct 23, 2026

DeepSeek Opens Its Production Inference Engine

deepseek-ai/DeepInfer

No. 013 · Oct 23, 2026

Giving coding agents a sense of hearing

Leonxlnx/earshot

No. 012 · Oct 22, 2026

Parametric CAD your agent can drive

tangency-labs/solidcraft

No. 011 · Oct 21, 2026

Local semantic search for every file

ARahim3/DigUp

No. 010 · Oct 21, 2026

Coding agents that can listen

Leonxlnx/earshot

No. 009 · Oct 20, 2026

Plain JavaScript compiled into neural nets

chenglou/handwired

No. 008 · Oct 20, 2026

Tuning the harness, not the model

google-research/harness2

No. 007 · Oct 19, 2026

Version control built for agent swarms

feder-cr/git-ai

No. 006 · Oct 19, 2026

Math Videos Rendered 90x Faster

academa-labs/manimgx

No. 005 · Oct 18, 2026

TypeScript Compiler Rewritten by AI Agents

pingdotgg/ts-rust

No. 004 · Oct 18, 2026

A $7 Board That Drives Your iPhone

onehumanbeing/esp32-iphone-agent

No. 003 · Oct 17, 2026

A 0.8B model that just decides

firelex/jeff

No. 002 · Oct 17, 2026

Your coding agents, in the notch

Louis-CFM/coucou

No. 001 · Oct 16, 2026

Ask your codebase, not grep it

dzhng/jevgrep