The website (https://git-annex.branchable.com/ https://git-annex.branchable.com/) has many details, including scenarios to explain why it can be useful. git-ann

The website (https://git-annex.branchable.com/ https://git-annex.branchable.com/) has many details, including scenarios to explain why it can be useful. git-annex is not so much a backup/sync utility, it's more a tool to track your files if they exist on multiple repositories. Instead of having remote storages holding files that happen to be the same, with git-annex the relationship is inverted: you have files, and each one can be stored on multiple storages. You can follow where they are, push them/get them from any storage that has it, remove them from one place if it's short on free space knowing that other storages still have it... There was a project of backing up the internet archive by using git-annex (https://wiki.archiveteam.org/index.php?title=INTERNETARCHIVE.BAK https://wiki.archiveteam.org/index.php?title=INTERNETARCHIVE...). Basically the source project would create repositories of files and users like you and I would be remote repositories; we would get content and claim that we have it, so that everyone would know this repository has a valid copy on our server.