Nextcloud is an open source, self-hosted file share and communication platform. Access and sync your files, contacts, calendars and communicate and collaborate across your devices.
Volumio is an open source audiophile music player. It is designed and fine-tuned for high-quality music playback and it runs on a variety of devices such as Raspberry PI and other microcomputers as well as PCs and Notebooks.
This project comes as a pre-built docker image that enables you to easily forward to your websites running at home or otherwise, including free SSL, without having to know too much about Nginx or Letsencrypt.