OwnTone is an open source (audio) media server for GNU/Linux, FreeBSD and macOS.

It allows sharing and streaming your media library to iTunes (DAAP1), Roku (RSP), AirPlay devices (multi-room), Chromecast and also supports local playback.
You can control OwnTone via its web interface, Apple Remote (and compatible DAAP/DACP clients), MPD clients or via its JSON API.
Besides serving your local music, podcast and audiobook media files, OwnTone supports internet radios and Spotify (requires Spotify premium account).

• OwnTone @ GitHub.

The open network attached storage solution.
openmediavault is the next generation network attached storage (NAS) solution based on Debian Linux. It contains services like SSH, (S)FTP, SMB/CIFS, DAAP media server, RSync, BitTorrent client and many more. Thanks to the modular design of the framework it can be enhanced via plugins.