As I've started to build up a little home lab, I've been playing around with the idea of either building or buying a PC to run pfsense on and use as my primary (edge?) router. That is, I would run my ...

Upgrading from your basic router, whether it was supplied by your ISP or not, is a huge step towards building a more resilient home network. You could get an off-the-shelf router or take the plunge ...