I was not aware that syncthing needs to be installed on both side. The NAS runs OMV and I didn’t find the extension in the plugin page of the dashboard. As OMV is based on Debian there is certainly a way but for the time being I will do things as simply as possible !
Thanks to both of you. Rsync doesn’t seems to have an “official” windows release, while rclone does, so I’ll look into that.
I meant : can you disable the internet connection ? Reading the other comments I guess not…
Oh shit. You don’t have the option to disable it?
Side question : is your car connected to the internet ?
Thanks, as I didn’t find a straightforward way to install syncthing on the NAS I will probably keep things simples with either freefilesync or rclone, mentionned elsewhere in this thread. Now I know those are good options so the time I invest will not be lost !