I am running PiHole, Plex, Samba, and Deluge Seedbox on my Rpi 4, 4GB version. I have an RPi 3 B+ lying spare. What else can I deploy on my home network that would make it a better and more secure environment? I was thinking of a VPN server, a mail server (for my own domain), and a DNS server. Please share your views on running these servers on RPi, and if you have some ideas or alternatives for the same or different to add.
