I totally forgot about autofs to mount NFS shares on-demand aka when I need to access them. I also forgot that I created this little page about it already, so I need to post it here again. Hopefully this will be a reminder for me in the future.
I use it to automatically mount exposed nfs shares on my Synology NAS to be mounted on my Raspberry Pi when I need to access files. Usually I just do a backup of my Pi every couple of days automatically and the shares will be mounted or when I access my media library through the Pi on the Synology. Otherwise the NFS share(s) are not mounted.