

For those wondering about Walgreens:
Walgreens, the nation’s second largest pharmacy chain, did not respond to requests for comment about the availability of Covid shots at its stores. But when a New York Times reporter tried to schedule vaccine appointments in all 50 states, the pharmacy’s website said patients would need a prescription in 16.
Vaccine appointments also appeared unavailable at Walgreens in many states. That may, in part, reflect a supply issue, doctors said. But Walgreens’ note that patients need prescriptions in some states could signal confusion among pharmacists over whom they’re allowed to vaccinate.
They use AWS and specifically design their software to be able to dynamically scale, ever since Wandavision crashed their playback.
Is it possible that they never entertained having to make their cancellation page scalable? Sure. Is it more likely that they intentionally haven’t made it scalable? Yes.