Earlier quoted context omitted.
Can I heavily recommend the use of them as a pihole + Wireguard VPN + DNSCryptProxy Server. Pihole -> Great use for a network wide adblocker/DHCP server. Wireguard VPN -> In combination with a DDNS setup and some port forwarding enables the use of a global private VPN. I think it's a prerequisite for a decent home-automation setup. DNSCryptProxy -> Great for ensuring all DNS requests on the network via DNS over HTTPS…
I ended up Tailscale for Wireguard myself. I was really worried about letting all these server software out on the wide open internet because I can't guarantee I'll be around 24/7 to monitor in case of a security problem and this way I can be lazier. :) The added benefit is that I can force all devices to use PiHole while connected to Tailscale and have DNS-adblocking on the go!
I find it super useful!
Even if just for remoting into various boxes; the kids for instance often tether their PCs off their phones or I'm tethered and want to remote to my LAN.
(I have terrible internet)