01Open source
Repos
Open-source repos worth knowing, by the problem they take on.
AI & Agents
Janas
Runs LLMs larger than system RAM in pure C on CPU or GPU, claiming 37 tok/s on an 80B model and faster reads than llama.cpp on a 32 GB laptop.
ESP32 iPhone Agent
Lets an OpenAI-compatible vision model operate a real iPhone through a budget ESP32 using AirPlay for screenshots and USB HID for taps.
skills
A set of composable Shell-based agent skills designed for daily engineering tasks.
iFixAi
An Apache-2.0 Python framework that audits AI agents against business KPIs in under 120 seconds to verify they perform the job they are supposed to do.
VoiceStudio
A fully local, open-source alternative to ElevenLabs offering voice cloning, video dubbing.
Crypto & Web3
hush
This open-source beta enables private email on Stellar with encrypted messages, recipient-controlled inbox policies, optional postage.
Stellar Pathfinder
This Go-based corridor-integrity monitor for Stellar prices stablecoin-to-fiat-token routes, scores them against independent rates.
Evm Hack Registry
This self-contained, offline-runnable archive compiles proof-of-concept exploits for DeFi hacks spanning EVM history from 2017 to 2026.
Clearledger Contracts
These Soroban smart contracts in Rust handle invoice finance on Stellar, including participant registry, invoice lifecycle, USDC liquidity pools.
oksolc
This Zig-based Solidity compiler offers faster iteration for development purposes as an alternative to the original solc.
Data & Databases
kvrocks
Apache Kvrocks is a C++ distributed key-value NoSQL database compatible with Redis protocol, and developers would check it now for scalable.
Mini Lsm
Mini-LSM is an educational Rust repository for building a storage engine to learn database internals.
slatedb
SlateDB is a Rust-based embedded storage engine that uses object storage for scalable, durable data management.
Objectbox Java
ObjectBox Java is a lightweight on-device database for Android and JVM apps with vector search capabilities.
Tusk
Tusk is a fast, native Rust database client for macOS supporting 20 databases with AI features, appealing to developers seeking keyboard-driven.
Dev Tools & CLI
AngKorGit
Provides a native cross-platform Git client using libgit2 and Rust to avoid web-based interfaces, accounts, and telemetry.
Excise
Lets you interactively navigate storage to identify and delete specific files with careful space accounting and safety reviews.
CleeCode
Combines an editor, file tree, and terminals in a single Rust application with keyboard-driven control, syntax highlighting, and git history.
blueprint
Converts app icons into blueprint-style versions for debug builds using Swift, supporting Icon Composer files and classic appiconsets.
xtool
Builds and deploys iOS apps from Linux, Windows, or macOS using SwiftPM and open standards instead of Xcode.
Embedded & Hardware
osos-lab
A Rust-based iPod firmware project that patches Apple's original Classic software to add features while preserving the familiar interface and playback behavior.
Tilefinch
An experimental PSP web browser in C that runs directly on the handheld and shows whether a 333 MHz console can handle modern pages and video.
xarxa
A Rust TCP/IP stack for embedded and real-time systems that aims to work without std or alloc while avoiding unsafe code and keeping memory use low.
ncnn
A C++ neural network inference framework for mobile, embedded, and desktop apps that runs models on CPU and Vulkan without third-party runtime dependencies.
DS5Dongle OLED Edition
A Pico 2 W project that turns Raspberry Pi hardware into a wireless DualSense adapter with an optional OLED status screen and desktop companion app.
Finance & Quant
Lumina Finance
Lumina Finance is a self-hosted personal finance application that tracks expenses, analyzes spending behavior.
ClearLedger
ClearLedger is open-source invoice-finance infrastructure on Stellar, combining Soroban smart contracts, a Next.js app, TypeScript SDK and CLI.
ta.py
ta.py is a zero-dependency pure-Python technical analysis library offering 151 indicators with full type hints, requiring no NumPy, pandas, or compilation.
TA-Lib
TA-Lib implements 200+ technical indicators and candlestick patterns with batch and streaming APIs and native bindings in C, Rust, Java, and C#.
Aurelio
Aurelio is a self-hosted personal finance and wealth-management app with an optional AI advisor via OpenRouter, running locally to keep data on your machine.
Game Dev
Aseprite AI Artist
Enables coding agents like Claude Code and Cursor to draw pixel art directly in open Aseprite windows by providing an MCP server with drawing, animation.
Security
TRONSEC
A JavaScript read-only TRON security workbench that inspects addresses, contracts, transactions, approvals.
Aegis
A TypeScript self-hosted web application firewall and reverse proxy for inspecting HTTP traffic, enforcing Layer 7 rate limits, and managing routing policies.
VD Google
A Kotlin Android app requiring root that reads on-device RCS, Google Wallet, and Play Integrity attestation data without sending anything over the internet.
box
A Rust sandbox for running AI agents under OS isolation with default-deny Dogwood policies that limit execution, file access, network reach.
Systems & Languages
arocc
ezno
A Rust-based TypeScript type checker and compiler in active development; useful for developers experimenting with its current subset of supported features.
noir
A domain-specific language for SNARK proving systems compatible with any ACIR backend.
Rustc Dev Guide
A collaborative guide explaining how the Rust compiler works and how to contribute to it, helpful for new.
virgil
Virgil is a language for building lightweight high-performance systems, compiling to native executables, WebAssembly, or JVM JARs.