- put a rack in your home
- buy an IPv4 block
- buy dark fibre
- start your own ISP
- advertise routes over BGP
- host your own email
- found a registrar and transfer your domains over
All easily obtainable for less than a million dollars in capital. Though once your FTTH and undersea cable operations ramp up you'll need further access to capital.There are also Tor hidden services, where the dependency on lower layers still exists but they can't find which is yours.