/aws/s3
Object storage — the AWS building block that shows up in almost every architecture. Buckets hold objects (files); every object has a key and metadata. Cheap, durable (11 nines), and effectively infinite. The trick isn't using S3, it's designing keys, lifecycle rules, and access patterns that don't quietly cost you.
Upload files from the browser straight to S3 — no proxying through your backend. Presigned PUT URLs with Django, the s3v4 SignatureDoesNotMatch fix, and the exact CORS config you need.