Find Your Dream Job by Contributing to OSS

Official Linux kernel source tree; a monolithic OS kernel powering servers, Android devices, and embedded systems; licensed under GPL‑2.0‑only with the Linux‑syscall‑note.

GDevelop is a full‑featured, open‑source, no‑code game engine and editor for creating 2D, 3D, and multiplayer games. It emphasizes accessibility with an event‑based system, modular behaviors, and AI assistance, and supports publishing to web, mobile, and desktop platforms.

Lean is an open-source, event-driven algorithmic trading engine by QuantConnect for strategy research, backtesting, and live trading. It features a modular, extensible architecture with out‑of‑the‑box alternative data and live‑trading support, and runs cross‑platform.

Maltrail is an open-source malicious traffic detection system that monitors network traffic against public blacklists, static trails from AV reports, and user‑defined lists, with optional heuristics to uncover unknown threats. It uses a Traffic → Sensor ↔ Server ↔ Client architecture where sensors capture traffic, the server stores events, and a fat‑client web UI visualises logs in the browser.

Metabase is an open-source business intelligence and embedded analytics platform that lets anyone explore data, build dashboards, and set up alerts without needing SQL, while also offering an SQL editor for advanced queries. It can be self‑hosted or used via Metabase Cloud and supports embedding analytics into applications.

Visual Studio Code (Code‑OSS) is the open‑source core of Microsoft’s cross‑platform, extensible code editor that supports the full edit‑build‑debug cycle and a rich extension ecosystem. The repository hosts the source code, issue tracking, roadmap, and monthly iterations for the product that is packaged as the Visual Studio Code distribution.

frp is a fast reverse proxy written in Go that helps expose a local server behind a NAT or firewall to the internet. It provides tunneling and reverse‑proxy capabilities, including HTTP, and is actively maintained with work underway toward a v2 refactor.

Expo is an open-source framework/platform for building universal native apps with React that run on Android, iOS, and the web. The expo/expo repository contains the Expo SDK, modules API, CLI, Router, documentation, and tooling that together with Expo Application Services enable teams to build, ship, and iterate on apps efficiently.

TiXL (formerly Tooll3) is an open‑source tool for creating realtime motion graphics that blends fast real‑time rendering, graph‑based procedural workflows, and timeline/keyframe animation. It targets artists and technical artists for VJing and motion design, supporting audio‑reactive content, shader development, and integrations such as MIDI, OSC, and Spout.

NocoDB is an open‑source no‑code database platform that provides a spreadsheet‑like interface over real databases, positioning itself as an Airtable alternative. It lets teams build apps, views, and automations on top of existing data sources and offers programmatic access via REST APIs and an SDK.