I think you would solve this in windows side. Windows can run scheduled task according to certain parameters one of them is a connection to network, so when your laptop connects to your home network the scheduled task will trigger, then you can attach a windows script to initiate the rsync to omv.
You can use rsync in windows installing Cygwin.
Don't ask here how to write a script for windows, there are other forums for that and plenty of information on the web.
Have had the same/a similar challenge.
I use these scripts with Windows and Linux (reason for delveloping has been I've been looking for a less or more (?) "Locky save" solution and didn't find something that fits my requirements. And also wanted to start a backup at all... 
) https://github.com/chris678/rsync-pull-backup
Hope it helps. But be careful, didn't check if it is the most current version (and if the readme is helpful enough...).
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