That's a good question.
There are so many unique use cases for cloud services, and none of them are quite the same. I would say that the uniqueness of this would include a couple of features. One was the high security bar that was required for this project. The other is the speed with which it needed to be executed, with that high bar of security. Being able to incorporate a number of different functionalities so quickly made it unique.
The other thing that was going on at the time was...of course, we all remember that public health guidance and policies on what you needed in order to travel were changing pretty frequently. The ability to operationalize those changes into the technology, also at speed, also made this project somewhat unique.