Have you thought about adding CLI support to the roadmap? If you were to add that it would be an instant buy for me, as well as many other admins, I'm sure.
Great product though! Always happy to see projects like this
One more question: Has BlobBackup been tested with hundreds of thousands, to millions of files in a single backup archive? I've had issues with backup software in the past choking during backup/restore with a very large number of files.
The limiting factor with BlobBackup will be the number of files the storage backend can handle in one directory. Generally speaking BlobBackup will create slightly more files in your destination than your original source.
With object storage like s3, b2, azure, wasabi etc, this just isn't a problem since you can effectively have as many objects in one "directory" as you want.
With local, nas or hard drive storage, you'd be limited by the number of files per directory the file system allows (4.2 billion for NTFS for example). So you're probably fine here too.
Google drive (which isn't recommended for large backups with BlobBackup) has much stricter restrictions on files per directory. So really it depends on the backend but for most use cases it isn't a problem.
BlobBackup has been tested on millions of files backed up to NTFS and object storage yes.