[h1d]

There's also Duplicacy which I feel is a bit more mature than restic (I felt it more performing and it also has a web interface but the lack of mount capability that restic has is what I miss and retention policy is quite easier to specify for restic too), though it's a paid software for non personal usage.

But paid is good that the author has less reason to move away from it. (As mentioned elsewhere, restic hasn't been updated in a while but they recently changed their pricing to be much more agressive which I hated. I wish they give it a softer pricing model than cost per machine.)

https://duplicacy.com/

Their comparison of cloud storage providers gave me a good insight on what to choose in terms of performance.

https://github.com/gilbertchen/cloud-storage-comparison/

I use both restic and Duplicacy, so my backups are done by multiple implementations toward multiple destinations not to get bitten by one of their bugs to avoid the saying "backups aren't working when you need it the most".