Synology NAS connetion to NUC running VMs

Hello there.

Have searched under every rock possible. My problem is that i want to connect Synology NAS shared media(movies, tv series) to my NUC running proxmox baremetal and on it Plex container inside Docker VM(with portainer as webui). Would like some help on the Portainer conf on connecting them.

Any and all suggestions are welcome, 'specially guides on it.

All the guides i've searched show how to do it on synology running docker and so on. Would like to keep the NAS and VMs separate.

Thanks.