Hello geeks,
I've come across this open-source software called PMOXMOX located at https://www.proxmox.com/en/
This is so cool, instead of building lots of hardware builts at home, you can have just a foundation set of hardware and load multiple instances of various OS/ server services on virtual hardware.
For all the motivations why you'd need such a set-up at home, take a look at this youtube video