Right now, as you are reading this, under the guise of enhancing your safety, the U.S. federal government is in discussions with multinational corporations and employers of citizens to create a more efficient process for you to register your vaccine compliance.
You may know their conversation under the terminology of a COVID passport. The current goal is to make a system for you to show your authorized work status; which, as you know, is based on your obedience to a mandated vaccine.
Beta tests are being conducted in various nations, each with different perspectives and constitutional limitations based on pesky archaic rules and laws that govern freedom. For the western, or for lack of a better word 'democratic' outlook, Australia is leading the way with their technological system of vaccination check points and registered state/national vaccination status tied to your registration identification.
The checkpoints are essentially gateways where QR codes are being scanned from the cell phones of the compliant vaccinated citizen. Yes comrades, there's an App for that.