I've looked around quite a bit too but did you actually use restic and duplicacy?
They've eaten my RAM quite heavily, it caused the machine to freeze up by exhausting the RAM on not that huge data sets and I've stopped using them a year or so ago.
I've come to the conclusion to use Borg and zfs as backup solutions (better to run multiple reliable independent implementations), latter being quite fast by knowing what got changed on each incremental backups as a file system itself unlike any other utilities that need to scan the entire datasets to figure out what got changed since last run.
You can run a 1GB memory instance and plug HDD (far cheaper) based block storage (such as on Vultr or AWS) for cheap zfs remote target. Ubuntu gets zfs running easily by simply installing zfsutils-linux package.
If you need large space, rsync.net gives you zfs target with $0.015/GB but with 4TB minimum commitment. Also good target for Borg at same price but with 100GB minimum yearly commitment. Hetzner storage box and BorgBase seem good for that too.
I've looked around quite a bit too but did you actually use restic and duplicacy?
They've eaten my RAM quite heavily, it caused the machine to freeze up by exhausting the RAM on not that huge data sets and I've stopped using them a year or so ago.
I've come to the conclusion to use Borg and zfs as backup solutions (better to run multiple reliable independent implementations), latter being quite fast by knowing what got changed on each incremental backups as a file system itself unlike any other utilities that need to scan the entire datasets to figure out what got changed since last run.
You can run a 1GB memory instance and plug HDD (far cheaper) based block storage (such as on Vultr or AWS) for cheap zfs remote target. Ubuntu gets zfs running easily by simply installing zfsutils-linux package.
If you need large space, rsync.net gives you zfs target with $0.015/GB but with 4TB minimum commitment. Also good target for Borg at same price but with 100GB minimum yearly commitment. Hetzner storage box and BorgBase seem good for that too.