sigh... so i need something completely different?
Discussion
You can still use #NextCloud. But to make it work as you are describing the following is required.
1) Create an SMB share
2) mount SMB share into Nextcloud
3) Each time there is a file change on the SMB share run a bash script to backup to a backup folder that will have every file. inotifywait can monitor any changes
I think you can configure Nextcloud version control and trash bin retention
./config/config.php
'versions_retention_obligation' => '60, 180',
'trashbin_retention_obligation' => '45, 90',
Read about these two, and set a number of days that work for you. This will
enable you to get deleted files from the trash bin and you can recover files of a specific version.
#Linux
This is why I hate all of this and I'm spending a fortune to build my own application for this.
I've got an SMB server with my Linux machine and its a complete pain in the dick even when I only use it locally. Maybe it will be more reliable with my Start9 but if it requires a shell script I'm going to have to give up on this and just plug in a freaking USB drive and dump it all there for the time being.
I'll save this for later. Don't take my complaining as a judgement 😆, this is genuinely hugely appreciated. 💜💜💜
I'm a huge Nextcloud fan and run a server for my local community, but yeah I think you probably do, given your use case.
If you can share a little more about how you want to use it, maybe we can find something that'd be a better fit.
Do you want to access these files on other computers, phones, tablets, etc.?
Do you want to share them with others?
These are both things Nextcloud does well but backups do not accomplish. It's possible you want both.