There is one major reason S3 remains the king of storage for mobile media uploads: bucket notifications. Does R2 implement this feature? If so, I’m going to have to run some experiments with this...
We’d stick R2 in front of an S3 bucket and wipe off a the biggest portion of our bill.
S3 does absolutely have a ton of other stuff like events, lifecycle, Glacier, Lambda etc and is plugged into the AWS ecosystem, so I doubt we’re exiting it completely. But this is a solid option as a front for egress from S3.
We're fully integrated with Workers, so you can write a Worker that calls additional logic when a request is made to the bucket's url.
We have notifications, where a change to the bucket invokes a worker with a specific event, on our roadmap, but have a bunch of other work prioritized ahead of them.
It's like going to a restaurant, asking if they have shrimp scampi, and getting a reply that you can go to a supermarket and buy the ingredients and make the dish and bring it back to the restaurant to have with your meal.
Just tell me you don't have shrimp scampi.