Good news, everyone!
We've just posted a new blog (https://blog.unimus.net/backing-up-the-unbackupable/) that describes how to push backups to Unimus for devices without CLI.
Some network devices do not output their configs via CLI and instead copy them to an external location such as an FTP (TFTP, SCP ...) server. For this specific case we've prepared a bash/powershell script that you can use to automate pushing configuration backup files to Unimus from a local directory. It is available on github (https://github.com/netcore-jsa/unimus-useful-scripts)
We know this topic has been a thorn in the side for some of Unimus users and believe the blog will provide a solution and a bit of clarity.
As always the forum is here to offer help and answers if anything comes up.