Install OPNsense on a Budget Mini PC (Topton N100 Setup)

Recently decided to get rid of my home broadband provided router (Amazon Eero) with an enterprise grade firewall features, without burning a hole in my wallet, using the Topton N100 mini PC. In this guide, I will walk through installing OPNsense, one of the most powerful open-source firewall platforms available today on this tiny box. My goal is to have segmentation in my home network, blocking ads at the edge and just showing my friends my home lab which they have 0 interest in :D