Support for remote system targets

[416c616e]

Neat project been needing something like as opposed to Proxmox Backup.

Not clear from the README, is there support for remote data?

[samuelncui]

Remote data as something like nfs or cifs? Mount them under the data path, then you can backup them like local files.

[416c616e]

While mounting is always nice, hoping to instead let it run as a server that accepts input streams

[samuelncui]

Writing to a tape device needs foreseeable input speed, for LTO5 it's 140MB/s, for LTO6 it's 160MB/s, etc. If we accept an input stream, current read mechanisms that is made to keep up this speed (like preload file with mmap hint) will be disabled. And tbh networks always have some problems making the link speed lower than expected. Lower input speed is likely to cause shoe-shining and other problems while writing. I would suggest avoiding using remote file systems if possible, let along input streams.