I took back Video.js after 16 years and we rewrote it to be 88% smaller
Rival open-source video projects united to shrink the bundle size by 88 percent.
Open source projects from Show HN — libraries, frameworks, and community tools with public code.
Rival open-source video projects united to shrink the bundle size by 88 percent.
Full chess engine in 2KB — demoscene-grade constraint coding transcends gaming.
Two-year reverse-engineering effort resurrects unplayable 2000s web games like Habbo Hotel.
Full OS with browser in 1.8MB — demoscene constraint craft that any programmer should see.
AI curation with human calibration benchmarks—surfaces quality HN projects you'd actually use.
A modern web browser for Classic Mac OS 9 PowerPC. Real CSS3, ES5 JavaScript, native HTTPS — built with CodeWarrior on the Carbon API.
Native TLS 1.2 on Classic Mac OS 9 without proxying is actual wizardry.
AI that cites real laws instead of hallucinating—15 countries live, 132 planned, free forever.
Custom noise node implementations finally close the gap between reference and open-source renders.
DNA-encoded ULID makes knowledge cards globally unique, sortable, and decodable offline forever.
BXP — Open universal file system standard for atmospheric exposure data. Like HTTP for air quality. No hardware required. Apache 2.0.
HTTP-equivalent standard for air quality data, federated networks, no licensing or hardware lock-in.
Multitrack DAW running entirely in the browser with zero backend dependencies.
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.
Tracks jets, ships, satellites, and earthquakes live on one unified dark-ops map.
Glean alternative on pure Postgres—hybrid search, sandboxed code execution, permission inheritance.
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
Complete offline AI suite on mobile: text, images, vision, voice—no servers, no uploads, real speeds.
A modern Music Player Daemon based on Rockbox firmware https://rockboxzig.mintlify.app/
Rockbox engine as a server daemon with AirPlay and Snapcast multi-room sync built in.
Music stem separation in the browser without uploads—Rust + WebGPU beats cloud dependency.
Finally boots Darwin in QEMU without proprietary kexts or root access.
Reverse-engineered local API lets you own print data without Bambu's cloud.
A unified symbolic-numeric expression runtime for Python where all elementary functions are created from a single operator
EML lowering rewrites any expression to exp(x) - ln(y) trees based on actual research paper.
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.
Beats JPEG with zero-bit saliency fields and full 4:4:4 chroma — rare codec craft in Rust.
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
Impressively engineered low-level, bit-packed segmented sieve in Rust — a technical showcase with niche appeal to systems and algorithm enthusiasts.
Receiver is a modern internet radio player for GNOME, featuring a curated collection of over 30,000 stations from around the world.
Killed dead-link radio directories by scanning and verifying 50k streams, shipping a real app.
Git-meets-docs blogging: readers fork posts, edits become pull requests, merges in real-time.
A legally defensible, industry-grade blueprint for building an open-source NTFS structural repair engine from scratch.
1400-line clean-room NTFS repair spec when ntfsfix can't handle real corruption.
Serverless search for the old weird web when Google only finds SEO slop.
Machine-readable agent conduct rules for restaurants. A /.well-known/restarules.json discovery model.
Robots.txt for AI restaurant agents addressing real regulatory compliance needs.
AT Protocol key rotation for death succession—why didn't this exist before?
FairPlay auth via ARM64 snapshots lets Linux users mirror to Apple TV.
The missing Kindle toolkit. Dictionaries, books, comics. Single Rust binary. ~7,000x faster than kindlegen for Modern Greek, ~40x faster for French.
Reverse-engineered undocumented MOBI format — builds dictionaries in 6 seconds vs 12 hours.
Peru's 1993 Constitution as a Git history — git blame shows which law changed each line
Git blame reveals which law changed each constitutional line since 1993.
Donors fund compute credits so maintainers can use AI tools without burning personal cash.
First formally verified polygon intersection with Lean 4 proof and web demo.
Local LLM with sleep cycles, memory consolidation, and moral philosophy framing—audacious conceptual leap beyond chatbot UX.
A machine-readable graph of truth claims, built on Git and Markdown
Philosophy-as-code: Git-backed argument DAGs parseable by both humans and LLMs.
Git commits records with code changes—permanent auditable history SaaS can't match.
A modern personal relationship manager — Go + React rewrite of Monica CRM
Ground-up Go rewrite of abandoned Monica with single binary, 1300+ tests, and CardDAV sync.
Combines PyMol, VMD, and GROMACS into one Rust GUI that just works.
Persistent TLS streaming from vehicle to your hardware beats polling.
Hacker Book - COMMUNITY, ALL THE HN ARE BELONG TO YOU. An unkillable, static offline archive of all of Hacker News. Updated weekly.
Runs 22GB of HN history entirely in-browser using lazy-loaded SQLite shards over WebAssembly.
~10KB chat widget. Zero cookies. Zero tracking. Fully open source.
10KB gzipped with zero cookies beats Intercom's 200KB+ bloat any day.
Mature open-source watch OS with impressive polish, but niche market with limited device ecosystem.
This is a version based on v2.3.7 supposed to eventually run natively on PC i386, Raspi Model 3b and Olimex ESP32-P4-PC, using existing bootloaders instead of Oberon0
Ready SD card image brings Wirth's Oberon to modern Pi hardware.
Dual OS targeting 80186 under 192KB RAM and i386 with VGA graphics support.
A custom 32-bit x86 operating system built from scratch in C and Assembly. Features a graphical window manager, TCP/IP stack, and custom filesystem. Developed solo in 14 days. by a 13-year-old
Impressive 14-day solo build, but OS-from-scratch is a well-trodden path.
Vim keybindings for Discord in your terminal when official CLI doesn't exist.
Deduped tree view for 55k files makes navigating the archive actually usable.
Unix-inspired shell and RAM filesystem for the Commodore 64 (6502 assembly) / AI-assisted development
Unix shell in 6502 assembly on C64: login, editor, filesystem, all real hardware compatible.
Send files directly between devices over the internet - no cloud, no servers, no size limits.
LocalSend already does P2P file transfer without servers, but this one's open source.
245 projects