This Isn’t Your Father’s Yellow Card https://hackaday.com/2021 | Hackaday

This Isn’t Your Father’s Yellow Card
https://hackaday.com/2021/02/01/this-isnt-your-fathers-yellow-card/

As the global vaccination effort rolls out in many countries, people will increasingly be required to provide evidence for various reasons, especially travelers. Earlier this month a coalition which includes Microsoft, the Mayo Clinic, Oracle, MITRE, and others announced an …read more (https://hackaday.com/2021/02/01/this-isnt-your-fathers-yellow-card/)