Open Source Projects

Open source projects from Show HN — libraries, frameworks, and community tools with public code.

GitHub

BXP — Open universal file system standard for atmospheric exposure data. Like HTTP for air quality. No hardware required. Apache 2.0.

0Python
●●●●Gem

BXP – An open standard for atmospheric exposure data

HTTP-equivalent standard for air quality data, federated networks, no licensing or hardware lock-in.

Zero to OneBig BrainSolve My Problem
BXP
103mo ago
GitHub

Open-source intelligence for the global theater. Track everything from the corporate/private jets of the wealthy, and spy satellites, to seismic events in one unified interface. Hook an AI agent up to have it parse through data and find previously unseen correlations. The knowledge is available to all but rarely aggregated in the open, until now.

9,174Python
●●●Banger

I built a real-time OSINT dashboard pulling 15 live global feeds

Tracks jets, ships, satellites, and earthquakes live on one unified dark-ops map.

WizardryCrowd PleaserRabbit Hole
vancecookcobxin
3121233mo ago
GitHub

The Swiss Army Knife of Offline AI. Chat, Speak, and Generate Images - Privacy First, Zero Internet. Download an LLM and use it on your mobile device. No data ever leaves your phone. Supports text-to-text, vision, text-to-image

2,445TypeScript
●●●Banger

Off Grid – Run AI text, image gen, vision offline on your phone

Complete offline AI suite on mobile: text, images, vision, voice—no servers, no uploads, real speeds.

Zero to OneSolve My ProblemWizardry
ali_chherawalla
124663mo ago
GitHub

Darwin system built with Nix

41Shell
●●●Banger

Darnix – Darwin Built with Nix

Finally boots Darwin in QEMU without proprietary kexts or root access.

WizardryBig BrainNiche Gem
jonhermansen
13121d ago
GitHub

AUREA beats JPEG by compressing images using variable-size Lapped Orthogonal Transform (8/16/32), a zero-bit Turing morphogenesis saliency field, AC-domain Chroma-from-Luma prediction, and rANS entropy coding with Exp-Golomb.

3Rust
●●●Banger

Aurea, a lossy image codec I built from scratch that beats JPEG (Rust)

Beats JPEG with zero-bit saliency fields and full 4:4:4 chroma — rare codec craft in Rust.

WizardryBig BrainDark Horse
Symphoenix
402mo ago
Text Post

Started with a hyper-compact C++ bit-packed sieve — months of whittling it down to ~9 lines of raw bit manipulation. One bit per odd number, Brian Kernighan's bit trick for extraction, hardware tzcnt

●●●Banger

Bit-packed segmented prime sieve in Rust, 32KB working memory, 0 deps

Impressively engineered low-level, bit-packed segmented sieve in Rust — a technical showcase with niche appeal to systems and algorithm enthusiasts.

whisprer
313mo ago
Collaborative Blogging
●●●Banger

Collaborative Blogging

Git-meets-docs blogging: readers fork posts, edits become pull requests, merges in real-time.

Zero to OneBig BrainRabbit Hole
sgoto
313mo ago
GitHub

A legally defensible, industry-grade blueprint for building an open-source NTFS structural repair engine from scratch.

2Shell
●●●Banger

A Clean Room RFC for NTFS Structural Repair

1400-line clean-room NTFS repair spec when ntfsfix can't handle real corruption.

WizardryBig BrainNiche Gem
seb3773
311mo ago
GitHub

The missing Kindle toolkit. Dictionaries, books, comics. Single Rust binary. ~7,000x faster than kindlegen for Modern Greek, ~40x faster for French.

31Rust
●●●Banger

Kindling – reverse-engineered kindlegen, ~7,000x faster in Rust

Reverse-engineered undocumented MOBI format — builds dictionaries in 6 seconds vs 12 hours.

WizardryDark HorseZero to One
ciscoriordan
212mo ago
GitHub

Hacker Book - COMMUNITY, ALL THE HN ARE BELONG TO YOU. An unkillable, static offline archive of all of Hacker News. Updated weekly.

203JavaScript
●●●Banger

Self-hosted static archive of 20 years of Hacker News

Runs 22GB of HN history entirely in-browser using lazy-loaded SQLite shards over WebAssembly.

Rabbit HoleZero to OneWizardry
keepamovin
1124d ago
GitHub

Unix-inspired shell and RAM filesystem for the Commodore 64 (6502 assembly) / AI-assisted development

30Assembly
●●Solid

Unix for the Commodore 64? Open Source

Unix shell in 6502 assembly on C64: login, editor, filesystem, all real hardware compatible.

WizardryRabbit HoleNiche Gem
ascarola
1583mo ago
GitHub

Send files directly between devices over the internet - no cloud, no servers, no size limits.

363TypeScript
●●Solid

Altersend – File sharing without cloud

LocalSend already does P2P file transfer without servers, but this one's open source.

Solve My ProblemSlick
denisdev1
1477d ago