This is now possible with the advent of CBRS. https://freedomfi.com/ https://freedomfi.com/ is selling hardware later this year which will allow you to become

This is now possible with the advent of CBRS. https://freedomfi.com/ https://freedomfi.com/ is selling hardware later this year which will allow you to become your own cell tower for 5G CBRS bands. You'll 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.