Flysystem v3+

Flysystem lets Drupal manage file and image uploads through a single,
consistent admin interface — whether those files live on the local
filesystem or somewhere remote, such as an Amazon S3 bucket, an
S3-compatible service like MinIO or Cloudflare R2, or a remote server over
SFTP. Everything in Drupal that works with files today (file fields,
media, image styles, downloads) keeps working exactly as it does now.
Nothing that uses Drupal's file system needs to know or care where the
bytes actually live.