arq_restore VS Duplicacy

There's also Arq Backup which can backup to OneDrive so if you have less than 1TB to backup you might not need to pay anything.

https://www.arqbackup.com/

I use Arq Premium backup services They supply the backup software and the cloud storage

People who want something similar may want to look at Arq [1]. Similar to restic, it provides incremental encrypted backups to most cloud providers (or a machine with SSH). But it is a Mac app, making it easy to configure and maintain. I never had issues with data corruption so far.

Disclaimer: I am not affiliated with them, just a happy user for 9 years.

[1] https://www.arqbackup.com

Sending it to the NAS should create a copy automatically to BOTH an online server (I was thinking dropbox, but the space might be too limited. Maybe AWS? I've used https://www.arqbackup.com/ on my computer before so something similar would be great) and a second drive (so I guess I'm looking at a 2-drive NAS that I can setup as master-slave).

For actual off-site backups, using something like https://www.backblaze.com or use https://www.arqbackup.com and your own choice cloud storage provider.

Curious too. On the Mac side, I feel like I mostly hear about Backblaze for cloud backups, but I do like Arq for pushing to any of the typical cloud storage options.

Have a look at Arq backup https://www.arqbackup.com/ It might meet your requirements

Take a look at Arq Backup - not identical, but it's E2EE.

You could try this: https://www.arqbackup.com/ , it supports B2 I believe.

Regarding Arq backup: if you are worried about using a proprietary (enrypted) and closed-source backup format in case the company were to go under, they have an open source command-line restore tool:

https://github.com/arqbackup/arq_restore

I've been using Arq for years, but I need to look into the "Glacier Deep Archive" format which is about 1/20th the cost of the fastest storage class.

I have been having great luck with incremental backups with the very similar named Duplicacy https://duplicacy.com/

Pro: No need for a special index database. The chunks are placed in the file system. This explains it in greater detail. Seems to place great emphasis on reliability, which is important for me. Versioning is also supported.

Having all your data in one place isn't wise though, so I am planning on storing encrypted backups on Dropbox and Backblaze B2 using Duplicity so that I am following the 3-2-1 backup rule.

I tried a bunch of different ways but ultimately settled on Duplicacy [0].

It runs inside a Docker container and backs up both my data as well as configurations like my docker compose file and smb.conf.

Off site storage was Backblaze B2, but I moved to Hetzner. Likely will move back just because B2 is cheaper and a bit faster for my region.

Another layer of backup I do is use Duplicacy to backup to a portable hard drive occasionally that I keep off site.

[0] https://duplicacy.com/

Duplicacy

I use Kopia and works well. Have also used this https://duplicacy.com