all in one server

Hi;
I have pi-hole installed could login need to setup other items.
I have one 8 corre 8320 amd cpu box 12gig ram.
I’ve installed ubuntu server, vbox,pi-hole on it.
I want to have a vbox with ipfire in it and use it with pi-hole and server as a nas .
all on one box.
Is this even a thing???
ty ahead of time.