If you are searching for a place where backup your data, get some small remote monitoring service, host an secondary smtp, you can setup/buy another YunoHost OR you can search for other persons with the same needs than you and swap some disk space.
To help you to make a good request here is a small example of how you could write your topic:
I search : URL : production.ynh.fr (will be used for alert email) Apps needed : borgserver_ynh Quota needed : 200GB (you need to evaluate correctly how many you need) Location preferences if any : France Frequencies : each night at 00:00 PM (UTC+2) Comments : specific conditions, url of your instances …
Make an offer
I offer: URL + Port : backup.ynh.fr:2225 Apps : borgserver_ynh Quota : until 200GB (you need to evaluate correctly how many you can provide safely) Location : France Frequencies restriction if any : only during french night Comments : specific condition, …
Answer a request
If you have enough space and bandwith, you can answer by giving your domain name and your port to your instances.
With the URL and port the person will be able to setup borg_ynh, and next give you ssh_user + public_key
After what you can setup the borgserver_ynh on your instances with:
SSH_USER : the ssh_user key given
PUBLIC_KEY: the public key given
QUOTA: the quota you offer
ALERT_DELAY: calculate it from frequencies
ALERT_MAILS: root@DOMAIN_OF_THE_INSTANCES_BACKUPED
When it’s done indicate it on the topic of the request (with solution checkbox).
Cancel an offer / a request
Just close the topic (and edit info if you are spammed)