Umbrel - Run your personal server on a Raspberry Pi or Ubuntu/Debian, self-host open source apps like Nextcloud, Matrix, and Bitcoin node, and take full control of your data. For free.

HomeDock OS - Self-host, manage, and take control of your private cloud. Transform any Windows, macOS, Linux or Raspberry Pi into your own private cloud. Self-host apps, manage your data, and take full control of your digital life, with full Docker compatibility.

websocketd - Turn any program that uses STDIN/STDOUT into a WebSocket server. Like inetd, but for WebSockets.

Codepact - jQuery for legal documents

Bitcoin Core - Bitcoin

CasaOS - CasaOS is an open-source home server system based on the Docker ecosystem and designed for home scenarios.