Maybe it would be cool if somebody from the systems team at .org creates a page that will pull information from public APIs with information about infection rates etc. and distill them into the above checklist.

Data is available, all that would be needed was to create a page where you could enter your country (or select it from a dropdown), and you would get a list:

Is your country’s (or state’s) average positivity rate over the past 28 days under 4%? ✅
In the past 28 days, has your country or area’s basic reproduction number stayed under 1? ✅
In the past 14 days, have there been under 50 new cases per 100,000 people reported? ❌

Something like this. That would make the lives of the meetup organizers a lot easier.