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The Free Software Media System - Server Backend & API

Bitwarden infrastructure/backend (API, database, Docker, etc).

Kavita is a fast, feature rich, cross platform reading server. Built with the goal of being a full solution for all your reading needs. Setup your own server and share your reading collection with your friends and family.

Accept Bitcoin payments. Free, open-source & self-hosted, Bitcoin payment processor.

Codebase intelligence for AI and humans: code health scores, auto-generated docs, git analytics, dead code detection, and architectural decisions via MCP.

On-screen aware AI assistant for your desktop. Uses current app context, multiple LLMs, and MCP tools to help you act across apps.

Repository for skills to assist AI coding agents with .NET and C#

Umbraco is a free and open source .NET content management system helping you deliver delightful digital experiences.

A modern client-server application for the Soulseek file sharing network.

Want a Movie or TV Show on Plex/Emby/Jellyfin? Use Ombi!

A multiplayer game about paranoia and chaos on a space station. Remake of the cult-classic Space Station 13.

OpenDeepWiki is the open-source version of the DeepWiki project, aiming to provide a powerful knowledge management and collaboration platform. The project is mainly developed using C# and TypeScript, supporting modular design, and is easy to expand and customize.

Linq to database provider.

Zadig: An AI-powered, cloud-native, distributed DevOps platform designed for developers

Privacy-first password manager with built-in email aliasing. Fully encrypted and self-hostable.

Open-source platform that transforms your personal media library into live, custom TV channels.

Headless CMS and Content Managment Hub

Mail-Archiver is a web application for archiving, searching, and exporting emails from multiple accounts. Featuring folder sync, attachment support, mailbox migration and a dashboard.

Enterprise-grade feature flag platform that you can self-host. Get started - free.

Damselfly is a server-based Photograph Management app. The goal of Damselfly is to index an extremely large collection of images, and allow easy search and retrieval of those images, using metadata such as the IPTC keyword tags, as well as the folder and file names. Damselfly includes support for object/face detection.

The .NET/.NET Core instrument agent for Apache SkyWalking

OpenBudgeteer is a budgeting app based on the Bucket Budgeting Principle

Multi channel notification service for collaboration tools, e-commerce, news service and more.

Plex downloader that brings content from any server to yours!

A state-of-the-art distributed system using Reactive DDD as uncertainty modeling, Event Storming as subdomain decomposition, Event Sourcing as an eventual persistence mechanism, CQRS, Async Projections, Microservices for individual deployable units, Event-driven Architecture for efficient integration, and Clean Architecture as domain-centric design

Lightweight multi-format artifact registry. 15 formats: Docker, Maven, npm, PyPI, Cargo, Go, Raw, RubyGems, Terraform, Ansible Galaxy, NuGet, Pub, Conan, RPM, and Debian/APT. Single binary, zero dependencies, < 50 MB RAM idle.

C# .NET 10 Blazor habit tracker application. Works on Web, Windows, Linux, Android, iOS and macOS.

A simple expense tracking application

Detect and rename ROMs and other games

Backend API for location-based games or mapping applications powered by OpenStreetMap data. Renders maptiles without external dependencies in C# from SQL Server, MariaDB, or PostgreSQL