01Open source
Repos
Open-source repos worth knowing, by the problem they take on.
AI & Agents
BrowserKitten Web Agent
A Chrome MV3 unpacked extension that turns a logged-in browser into a programmable agent, letting users select elements on a live page, describe outcomes, and export editable office files. It runs locally with bring-your-own-key and no hosted server.
Navop All-in-One Workspace
A native all-in-one workspace for databases, SSH, SFTP, terminals, remote desktop, monitoring, and AI. It includes built-in support for MySQL, PostgreSQL, SQLite, DuckDB, SQL Server, Oracle, and ClickHouse, plus SQL editing, import/export, schema compare, and ER diagrams.
Vox Director Video
An agent skill that generates a finished Vox-style paper-collage explainer or ad video from a one-line topic, automating script, keyframes, motion, voice-over, music, and captions. Runs on Atlas Cloud plus ffmpeg, usable by coding agents.
Anything2Explainer Video
A Claude Code or Codex skill that turns any topic into a black-canvas motion-graphics explainer video with TTS voiceover, subtitles, and a chapter progress bar in Chinese or English. Every frame is drawn in code with Remotion, no stock footage.
DeepSeek IM Bridge
A plugin that connects IM bots to DeepSeek Harness via QR code, app manifest, or existing credentials across nine channels including Feishu, WeChat, DingTalk, Slack, Telegram, Discord, and WhatsApp. It manages multiple bots per channel from one settings entry.
Fluent Korean Plugin
A Claude Code output-style plugin that instructs Claude and coding agents to write clear, fluent Korean instead of broken machine-Korean with dropped particles and noun strings. It focuses on meaning over ornate style and can be adapted to other LLMs.
AI Slop Filter
A rule set for AI coding agents to reject generic AI-generated UI, text, and code. It includes 38 mandatory tiered rules and acts as a filter, not a style guide, while also auditing copy to avoid generic AI phrasing.
Crypto & Web3
ChronoStar Protocol
ChronoStar is a Stellar Soroban protocol providing time-based payment primitives such as scheduled vaults, recurring streams, and DCA policies. It is notable for substantive Rust smart contracts and an org-owned implementation of scheduled/recurring DeFi payments.
Data & Databases
Apache Cassandra
Apache Cassandra is an open source transactional distributed database with linear scalability and proven fault-tolerance on commodity hardware or cloud infrastructure. It is notable as a proven distributed wide-column database with exceptional scalability and fault tolerance.
OceanBase Database
OceanBase is a distributed relational database developed by Ant Group, using Paxos for high availability and linear scalability. It is notable for enterprise-grade distributed HTAP with vector support and very large cluster capacity.
Database Migrate CLI
golang-migrate/migrate is a database migration tool available as a CLI and Go library, applying migrations from various sources in correct order. It is notable as a robust and widely used migration solution for Go projects.
YugabyteDB SQL
YugabyteDB is a PostgreSQL-compatible, cloud-native distributed SQL database for mission-critical applications. It combines relational transactional consistency with NoSQL scalability, targeting cloud-native OLTP workloads.
Tile38 Geospatial
Tile38 is an open source in-memory geolocation data store, spatial index, and realtime geofencing server supporting points, bounding boxes, Geohashes, and GeoJSON. It is notable for specialized real-time geospatial querying and geofencing.
Realm Swift
Realm Swift is a mobile database for iOS, macOS, tvOS, and watchOS, serving as a replacement for Core Data and SQLite. It is notable for strong engineering, efficient resource use, and offline persistence.
Finance & Quant
Portfolio Risk Management
Portfolio Construction and Risk Management book's Python code.
Actual Budget iOS
iOS client for Actual Budget
AI Marketing Skills
Open-source AI marketing skills — growth experiments, sales pipeline, content ops, outbound, SEO, and finance automation
Investor Skills Library
Investor Skills is an open-source library that turns durable investing judgment into portable, structured formats. It collects how great investors think, filter opportunities, size risk, and act under uncertainty — then structures those patterns so humans can study them and AI finance agents can apply them.
ICT MQ5 Library
ICT Concept OSS Library for MQ5/MT5
Market Research Dashboard
A single-screen real-time market dashboard for financial and industrial research: covering global indices (A-share/HK/US), commodities, treasury yields, sector hotspots, capital flows, 24/7 news, industry-chain watchlists, and AI token tracking.
Aurum Finance OS
Self-hosted personal finance OS — cash flow, net worth, budgets, and every income stream you own. Free for personal use.
Game Dev
Game Design OS
Local-first operating layer for AI-assisted game design that turns ideas, gameplay, research, and workflow into evidence, experiments, decisions, and project memory with human gates and rollback. Notable for novel local-first agent workflow tooling for reviewable game design decisions.
Resonite Unity Renderer
Unity renderer for the Resonite social VR sandbox platform, which uses a multi-process architecture where a custom .NET 10 engine communicates with the renderer via IPC and shared memory. Notable as a real, active renderer component for the VR platform.
Multiplayer Game Server
Authoritative UDP multiplayer game server in Rust for a top-down arena shooter, implementing custom binary protocol, selective acknowledgement, client-side prediction, server reconciliation, and entity interpolation from scratch. Notable as a useful from-scratch networking stack and learning project.
Yuri's Revenge Engine
Rust reimplementation of Command & Conquer: Yuri’s Revenge for large multiplayer battles, true to original Westwood visuals and gameplay. Notable as an active, contributor-owned cooperative engine rebuild for real RTS play.
Aeon Game Engine
Fully modular 3D game engine written almost entirely in safe Rust, designed to be lightweight and replace systems without heavy dependencies. Notable as an early but substantive Rust engine using ECS and wgpu.
StableRef Unity Wrapper
Wrapper over Unity's SerializeReference that provides a searchable typed inspector selector, safe copy/paste, and editor tooling to find and fix references; class renames don't break data via stable string type IDs. Notable as a useful refactoring-safe serialization library.
Fallout 4 Shaders
F4SE plugin adding modern rendering features to Fallout 4, based on Skyrim Community Shaders and currently experimental with source builds only. Notable as an active shader modding framework for Fallout 4 using reverse engineering.
Systems & Languages
Intel ISPC Compiler
ispc compiles a C-based SPMD language to run on SIMD units of CPUs and GPUs, providing frequent speedups of 3x or more on SSE and 5x-6x on wider architectures. It is notable for low-level SIMD performance.
Faust Signal Processing
Faust is a functional programming language for real-time signal processing and sound synthesis. It is notable for compiling to many targets for low-level audio.
Idris2 Functional Language
Idris 2 is a purely functional programming language with first-class types, supporting dependent types. It is notable for its cutting-edge type system and compiler.
CCache Compiler Cache
ccache caches previous compilations and detects repeated compilation to speed up recompilation. It is an essential build performance tool for C and C++.
Tiny C Compiler
TinyCC is a small, fast C compiler that compiles and links about 10 times faster than gcc -O0 and can execute C directly on several architectures. It is a classic low-level tool with an optional memory and bounds checker.
Jank Programming Language
jank is a Clojure dialect on LLVM with C++ interop, aiming for strong Clojure compatibility and native performance. It is notable as an ambitious systems language currently in alpha.
DMD D Compiler
dmd is the reference compiler for the D programming language. It is a mature systems language compiler with active development.
Trending Overall
NVMe AI Inference
Embeddable C inference engine with no third-party runtime dependencies that streams activated weights from NVMe to run huge models like 2.78T Kimi K3 beyond RAM. Enables trillion-parameter frontier models on consumer hardware like 64GB.
AI Research Loops
Standalone extension for Pi that packages four efficiency mechanisms from scaled auto-research loops to reduce repeated model turns, context replay, oversized observations, long-log reading. NVIDIA lab research tooling for efficient agent harnesses.
Fugleramme Bird Detection
A bird frame for Raspberry Pi that performs real-time bird detection by audio using fully local AI and displays results as hand-cut 1800s bird illustrations on e-ink or other screens. It was selected for GOSIM Spotlight.
RTX 30 DLSSG
Enables NVIDIA DLSS frame generation on RTX 30 and 20 series GPUs via version.dll and ini for Windows D3D12. Valuable hack for older GPU owners; recent fixes for corruption/crashes; active.
Open Source Video Editor
Free open-source CapCut replacement running locally with native Rust engine, multi-track editing, auto-captions, text-to-speech, no watermarks/account. Supports MCPs, cross-platform, active.