Config data to backup from inside folders, Different type of Policies, Store repo's config file inside repo

How to config what data to backup from inside the folders ?

how to config from inside folders for disks (not OS) with e.g.`.backupconfig`file containing e.g. backup=1, or have select file 'backuped/not-backed-up’.

I am backing up to external HDD,

What’s the difference between Policies: Applicable, Local Path, All, Global, Per-User, Per-Host ?

Should I store repo’s config file inside the repo ?

How can I have configs saved to use across OSes or when I reinstall OS ?

  • I use multiple disks(for multiple OS) on the same PC, and

  • I want to backup data from same PC to same external disk.

I am using KopiaUI.

You can easily tell it to backup a specific folder and then configure exclusions from the backup job’s policy.

Also I want to keep my policy safe.