You can follow the submissions via an RSS feed.
For example, if you use the link Https://lemm.ee/feeds/u/Corr.xml?sort=New
, all your previous posts will be displayed.
Instead of lemm.ee you need to specify the instance where the user in question is registered. And instead of Corr
you have to enter the username. For example https://discuss.tchncs.de/feeds/u/fryboyter.xml?sort=New
. That would be in this case my contributions.
However, I would not use the storage boxes as the only backup. The offer has two disadvantages.
The boxes are regularly unavailable for some time due to maintenance work. But these maintenance times are announced in advance.
Hetzner does not specify what kind of RAID is used.
I therefore only use my box as an additional offsite backup and to swap out less important files.
Yes, this is a bug. This has already been reported (https://github.com/LemmyNet/lemmy-ui/issues/1581) and fixed (https://github.com/LemmyNet/lemmy-ui/pull/1661). I assume that after the release of Lemmy 0.18.1 everything will work again as it should.
The amount of data I backup offsite is significantly less than 20 TB. Therefore, my answer to your question will probably not help you.
I store my offsite backups at rsync.net and in one of Hetzners Storage Boxes. For backups in general, I use Borg.
Maybe Borg is a possibility. However, I have not yet backed up an entire system with it, but only certain files.
I don’t particularly like the graphic interface as shown at https://demo.archivebox.io/public/. In my opinion, too much is displayed at once.
For my part, I use Wallabag to save single Internet pages. I think its graphic interface is better. But it is not perfect either.