Matt Van Horn - Open Source Developer

caveman

juliusbrussee

🪨 why use many token when few token do trick — Claude Code skill that cuts 65% of tokens by talking like caveman

RuView

ruvnet

π RuView turns commodity WiFi signals into real-time spatial intelligence, vital sign monitoring, and presence detection — all without a single pixel of video.

last30days-skill

mvanhorn

AI agent skill that researches any topic across Reddit, X, YouTube, HN, Polymarket, and the web - then synthesizes a grounded summary

no-mistakes

kunchenguid

git push no-mistakes

kotest

kotest

Powerful, elegant and flexible test framework for Kotlin with assertions, property testing and data driven tests.

cli-printing-press

mvanhorn

Every API has a secret identity. This finds it, absorbs every feature from every competing tool, then builds the GOAT CLI — designed for AI agents first, with SQLite sync, offline search, and compound insight commands.

npmx.dev

npmx-dev

a fast, modern browser for the npm registry

printing-press-library

mvanhorn

Official library of CLIs generated by the CLI Printing Press. Endorsed, tested, and community-contributed.

agentcookie

mvanhorn

Your agent runs on a Mac that isn't your daily driver. agentcookie keeps its sessions in sync with the Mac you actually browse on, continuously, encrypted over Tailscale, so OpenClaw, Hermes, or any other agent runtime wakes up authenticated. macOS, peer-to-peer, no cloud middleman.

cve-lite-cli

OWASP

Fast, developer-friendly JS/TS dependency vulnerability scanner with local lockfile scanning, OSV matching, direct vs transitive visibility, --fix, JSON output, and practical remediation guidance.

chrome-devtools-mcp

benjaminr

An MCP Server for Chrome DevTools, following the Chrome DevTools Protocol. Integrates with Claude Desktop and Claude Code.

ai

mvanhorn

One-stop shop for building AI-powered products and businesses with Stripe.

DeepTutor

mvanhorn

DeepTutor: Lifelong Personalized Tutoring. https://deeptutor.info/.

RiPlay

mvanhorn

Multiplatform Music Player

shelfmark

mvanhorn

Shelfmark is a self-hosted web interface for searching and requesting books and audiobooks across multiple sources. Bring your own sources, metadata providers, and download clients to build a single hub for your digital library. Supports multiple users with a built-in request system, so you can share your instance with others and let them browse and request books on their own.

A-EDev-Flow

mvanhorn

A modern, feature-rich YouTube client for Android built with Jetpack Compose

Stirling-PDF

mvanhorn

#1 PDF Application on GitHub that lets you edit PDFs on any device anywhere

Fulguris

mvanhorn

⚡Web Browser

nono

mvanhorn

Capability-based agent runtime with fine-grained policies . Brokering access directly within the agent's operating context, with zero setup and zero latency

sdk

mvanhorn

Javascript & Typescript SDK for Zero-Knowledge Application Development

navidrome

mvanhorn

🎧 Your Personal Streaming Service

cms

mvanhorn

Build bespoke content experiences with Craft.

floci

mvanhorn

Light, fluffy, and always free - The AWS Local Emulator alternative

steam-rom-manager

mvanhorn

The bulk game importer and artwork manager for Steam!

SnapOtter

mvanhorn

Self-hosted file toolkit. 150+ tools for Image, PDF, Video, Audio, and Files. AI-powered, open source, fully offline. Your files stay yours.

tuicr

mvanhorn

a code review TUI with vim keybindings

datadog-agent

mvanhorn

Main repository for Datadog Agent

syncthing-android

mvanhorn

Syncthing-Fork - A Syncthing Wrapper for Android.

android-5

mvanhorn

:phone: The ownCloud Android App

lossless-claw

mvanhorn

Lossless Claw — LCM (Lossless Context Management) plugin for OpenClaw

hello-agents

mvanhorn

📚 《从零开始构建智能体》——从零开始的智能体原理与实践教程

asbplayer

mvanhorn

Browser-based media player and Chrome extension for subtitle sentence mining

Canvas

mvanhorn

CanvasMC is a fork of the Folia Minecraft server software that fixes gameplay inconsistencies, bugs, and introduces further performance enhancements to the dedicated server

react-spectrum

mvanhorn

A collection of libraries and tools that help you build adaptive, accessible, and robust user experiences.

NVSentinel

mvanhorn

NVSentinel is a cross-platform fault remediation service designed to rapidly remediate runtime node-level issues in GPU-accelerated computing environments

kilocode

mvanhorn

Kilo is the all-in-one agentic engineering platform. Build, ship, and iterate faster with the most popular open source coding agent. #1 coding agent on OpenRouter. 1.5M+ Kilo Coders. 25T+ tokens processed

sqlfluff

mvanhorn

A modular SQL linter and auto-formatter with support for multiple dialects and templated code.

3x-ui

mvanhorn

Xray panel supporting multi-protocol multi-user expire day & traffic & IP limit (Vmess, Vless, Trojan, ShadowSocks, Wireguard, Hysteria, Tunnel, Mixed, HTTP, Tun, MTProto)

kured

mvanhorn

Kubernetes Reboot Daemon

tsz

mvanhorn

A performance-first TypeScript checker

primefaces

mvanhorn

Ultimate Component Suite for Jakarta Faces

gateway

mvanhorn

Manages Envoy Proxy as a Standalone or Kubernetes-based Application Gateway

Dashboarr

mvanhorn

A mobile app to manage your self-hosted media stack from a single interface. Built with Expo & React Native

goclaw

mvanhorn

GoClaw - GoClaw is OpenClaw rebuilt in Go — with multi-tenant isolation, 5-layer security, and native concurrency. Deploy AI agent teams at scale without compromising on safety.

AntigravityManager

mvanhorn

Antigravity Manager is a powerful Electron-based application designed to manage accounts and processes for the Antigravity application. It provides a seamless interface for switching accounts, backing up progress, and controlling the application lifecycle.

expert

mvanhorn

Official Elixir Language Server Protocol implementation

ksp

mvanhorn

Kotlin Symbol Processing API

gtsam

mvanhorn

GTSAM is a library of C++ classes that implement smoothing and mapping (SAM) in robotics and vision, using factor graphs and Bayes networks as the underlying computing paradigm rather than sparse matrices.

adcp

mvanhorn

Docs and reference implementation for the Ad Context Protocol

koog

mvanhorn

Koog is a JVM (Java and Kotlin) framework for building predictable, fault-tolerant and enterprise-ready AI agents across all platforms – from backend services to Android and iOS, JVM, and even in-browser environments. Koog is based on our AI products expertise and provides proven solutions for complex LLM and AI problems

agentsview

mvanhorn

Local-first session intelligence and analytics for coding agents, supporting Claude Code, Codex, and more than 20 other agents. Also: 100x faster replacement for ccusage!

OpenLogi

mvanhorn

⚡️A native, local-first alternative to Logitech Options+, written in Rust 🦀 — remap buttons, DPI, and SmartShift over HID++. No account, no telemetry.

numpy

mvanhorn

The fundamental package for scientific computing with Python.

syft

mvanhorn

CLI tool and library for generating a Software Bill of Materials from container images and filesystems

omi

mvanhorn

AI that sees your screen, listens to your conversations and tells you what to do

eo

mvanhorn

EOLANG, an Experimental Pure Object-Oriented Programming Language Based on 𝜑-Calculus

tycho

mvanhorn

Tycho project repository (tycho)

operately

mvanhorn

The open source company operating system.

commafeed

mvanhorn

Google Reader inspired self-hosted personal RSS reader.

logto

mvanhorn

🧑‍🚀 Authentication and authorization infrastructure for SaaS and AI apps, built on OIDC and OAuth 2.1 with multi-tenancy, SSO, and RBAC.

bifrost

mvanhorn

Fastest enterprise AI gateway (50x faster than LiteLLM) with adaptive load balancer, cluster mode, guardrails, 1000+ models support & <100 µs overhead at 5k RPS.

terraform-provider-github

mvanhorn

Terraform GitHub provider

lightning

mvanhorn

Lightning ⚡️ is latest version of the OpenFn platform, a DPG and DPI building block that governments use to manage complex service/workflow automation and data integration projects.

highcharts

mvanhorn

Highcharts JS, the JavaScript charting framework

treehouse

mvanhorn

Manage worktrees without managing worktrees.

astarte

mvanhorn

Core Astarte Repository

Metrolist

mvanhorn

YouTube Music client for Android

stream-chat-swift

mvanhorn

💬 iOS Chat SDK in Swift - Build your own app chat experience for iOS using the official Stream Chat API

LibreTube

mvanhorn

An alternative frontend for YouTube, for Android.

client

mvanhorn

Clutterfree F-Droid client

terminal-code

mvanhorn

VS Code in the terminal

mesh-llm

mvanhorn

Distributed AI/LLM for the people. Share compute privately or publicly to power your agents and chat.

heroku-repo

mvanhorn

Plugin for heroku CLI that can manipulate the repo

catima-android

mvanhorn

Catima, a Loyalty Card & Ticket Manager for Android

swift-cross-ui

mvanhorn

A cross-platform declarative UI framework, inspired by SwiftUI.

kopuz

mvanhorn

Your next music player

thunderbird-android

mvanhorn

Thunderbird for Android – Open Source Email App for Android (fka K-9 Mail)

lawnchair

mvanhorn

No clever tagline needed.

Nuke

mvanhorn

Image loading system

DataflowTemplates

mvanhorn

Cloud Dataflow Google-provided templates for solving in-Cloud data tasks

dify

mvanhorn

Production-ready platform for agentic workflow development.

hysteria

mvanhorn

Hysteria is a powerful, lightning fast and censorship resistant proxy.

oneuptime

mvanhorn

Complete open-source monitoring and observability platform.

Skyblocker

mvanhorn

Hypixel Skyblock fabric Mod for latest minecraft version

midaz

mvanhorn

Source-available, cloud-native ledger platform for building financial infrastructure — multi-currency, multi-asset, double-entry accounting with n:n transaction support.

vaultwarden

mvanhorn

Unofficial Bitwarden compatible server written in Rust, formerly known as bitwarden_rs

breezy-weather

mvanhorn

A feature-rich weather app with good visualizations and more than 50 sources.

fleetdm-fleet

mvanhorn

Open device management

coder

mvanhorn

Secure environments for developers and their agents

OpenCADStudio

mvanhorn

A CAD application built with Rust — 2D/3D drawing, DWG/DXF support, and GPU-accelerated rendering

inkwell

mvanhorn

It's a New Kind of Wrapper for Exposing LLVM (Safely)