Not if you use aws-cli. But I think the larger issue is that Amazon doesn't provide a low-friction, secure way for applications to access their buckets. A good

Not if you use aws-cli. But I think the larger issue is that Amazon doesn't provide a low-friction, secure way for applications to access their buckets. A good way would be for each bucket to come with its own access key, or expiring tokens that you could query on the backend and use from the browser. Just spitballing of course.