Freedomfi (https://freedomfi.com/) is selling hardware later this year which will allow you to become your own cell tower for 5G CBRS bands, based on Facebook's magma project. You can backhaul a 5G modem/antenna, offload to a major MNO/MVNO, and get paid $.50 per gb consumption, paid in Helium HNT crypto (yes, crypto). Its still a big work in progress but could totally unlock private deployments of 5G networks and make them almost as easy as setting up wifi.