OK, the Raspberry Pi, plus a biquad dish antenna with an 8 mile range. Adapt to ham radio use, and suddenly you have primary or backup broadband digital back haul, control and / or link capabilities to a remote node or repeater.
How to Build a Raspberry Pi Jukebox Any Non-Geek Can Use
You have a ton of options for accessing your computer’s music library from your stereo, but most require a bit of technical know-how to actually use. You can build a jukebox with a Raspberry Pi, a tiny micro-computer, that anyone can use, even if they don’t know what a Raspberry Pi is.