1. You are correct for upload, but not for download. Looks like rails 7 added support for presigned urls: https://blog.saeloun.com/2021/09/14/rails-7-adds-expir

1. You are correct for upload, but not for download. Looks like rails 7 added support for presigned urls: https://blog.saeloun.com/2021/09/14/rails-7-adds-expiring-urls-to-active-storage/ https://blog.saeloun.com/2021/09/14/rails-7-adds-expiring-ur... 2. CDN support is via monkey patch: https://github.com/rails/rails/issues/44136 https://github.com/rails/rails/issues/44136 3. yep 4. yep