ossium
The ultimate hub for open-source contributors.
What it does
Search for OSS projects with unmatched speed and precision. Eliminate noise to find the best open-source solutions. Discover handpicked open-source repos, good first issues, and GSoC orgs. Contribute faster, today.
Find open source projects to contribute on Ossium. Discover handpicked open-source repos, good first issues, and GSoC orgs. Contribute faster, today.
Discover open-source projects, issues, and bounties from across the ecosystem. Main tools are on top. Click one to see what it does. More tools are listed below. A simple list of strong projects you can contribute to. No endless searching. “ Thanks, Ossium! Finding open-source repositories for contributions has never been easier. Really appreciate this! ” Ossium is a platform built to help developers discover and contribute to meaningful open source projects. It features curated feeds, powerful search and filters, a GSoC-focused discovery, issue exploration (especially good-first-issues), bounties, programs, GitHub Selfbot for maintainers, and a community forum to share experiences and get…from ossium.in
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- OAOSwatch – A News Aggregation Site for Open-Source Software2016 · oswatch.net · ▲150

More dev tools this month
the category →



Open-source GTM skills for technical founders
Dev tools · 29d ago · gtmcofounder.com

OpenTrailPaper is open-source bike computer firmware for the LilyGO T5S3 4.7" E-Paper PRO. It supports offline maps, GPX routes, FIT recording and Bluetooth sensors.
Dev tools · 1d ago · opentrailpaper.com

Launched alongside, August 2026
the whole month →- TL
Life & fun · 10d ago · louisabraham.github.io


- SA
Hello HN! I found that picking out plausible but diverse skin tones for my digital art and game development projects was kind of difficult, and I got curious about if there was a way to define a color space that made it easy. I've built a color picker and procedural generation algorithm based on the space as well as a bunch of other fun js features and demos throughout the page that use the equations. If you find it interesting, I have lots of explanations of how I built it and what properties the space has. The methodology might be a bit shaky, but hopefully the result is as helpful for…
Life & fun · Aug 2026 · toneyalexander.github.io


I trained a 125M-parameter transformer to autocomplete piano performances in real time (~108 notes/sec on an iPhone 15). The idea is basically GitHub Copilot or Tabnine, except instead of prompting it with code, you prompt it by playing a few notes on a MIDI piano. The model then continues what you played, entirely on-device. The app is free if anyone wants to try it. Happy to answer questions about the model, training, Core ML, or the many things that didn't work.
AI · 16d ago · simedw.com