What is Plex ?
Plex gives you one place to find and access all the media that matters to you. From personal media on your own server, to podcasts, web shows, and news, to streaming music, you can enjoy it all in one app, on any device.
What is OpenMediaVault ?
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.
openmediavault is primarily designed to be used in small offices or home offices, but is not limited to those scenarios. It is a simple and easy to use out-of-the-box solution that will allow everyone to install and administrate a Network Attached Storage without deeper knowledge.
What is Mumble
Mumble is a free, open source, low latency, high quality voice chat application.
Mumble was the first VoIP application to establish true low latency voice communication over a decade ago. But low latency and gaming are not the only use cases it shines in.