@saspus , another question, I would like to benefit from your experience 
I am looking for a third backup point (also remote) so as not to have all my eggs in one basket.
What remote storage can you recommend that works well with duplicacy-cli ?
This will be to archive my data every week, and like that, I will have 3 independent backups.
I’ve been lately (two years and half maybe?) very happy with STORJ. It’s my primary backup now. I have stuff in AWS Glacier Deep Archive via Arq, and storj via duplicacy-cli, running on TrueNAS Core in a plugin I put together: GitHub - arrogantrabbit/iocage-plugin-duplicacy: This is a simple duplicacy_web plugin for TrueNAS Core
For best performance you might want to tune the default chunk size, to be closer to 64M Storj segment size, and if your internet equipment or CPU power on the source machine is not up to par, and you want top performance – you may want to use STORJ hosted S3 gateway, but I’ve been fine using the native integration.
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Thanks, i will take a look at STORJ 
I backup to a local NVME drive and then copy those backups to Wasabi… Works great.
I find Storj a bit expensive, and you have to modify the native operation of Duplicacy (chunk size), so maybe later. I had a preference for iDrive E2, but 2022 and 2023 seem to have been catastrophic in terms of quality of service, and the German connector down for days gave me the creeps, so I also ruled out iDrive. I have several services at Infomaniak (including VPS) and I am completely satisfied with them, I will test their Swiss Backup service with the S3 connector for a few months. I will give feedback on the forum about my experience, good or bad Thank you all for your opinions.
You may want to consider S3 Glacier Instant retrieval. Cost is comparable to storj.
Anything cheaper is not sustainable and is prone to cutting corners and incentives misalignment related issues.
You don’t have to, unless you need multigigabit thoughput and have weak hardware.