A gateway UTM appliance that can be at any home or small office sitting between the LAN & ISP Router.
Features:
Webmin-Web-based system wide configuration tool
pi-home - Network-wide Ad Blocking
Squid Proxy - Proxy server with ACL in order to grant or restrict Internet access with gui like proxymin or webmin
Router+FW-
I would love to have an Ubuntu Core router. We have adguard-home already, which does comparable things to pi-hole. Having pi-hole too would be great, I agree. The other parts, web admin tools and network config utilities would really cool too.
I think the tricky part is, for a router, you typically want multiple hardware interfaces - usually multiple wired Ethernet ports. Are there good, abundant, reasonable-cost devices we can target with this kind of thing? A raspberry pi with a WiFi dongle could work for small installations, and perhaps that should be the first target?
Hi, I was just looking at your post, a few months ago I wrote a simple script to automate the installation of firewall, vpn, directory (samba AD) / directory replication and file server, it uses LXD to put the different services on a container, I wrote it to run on a raspberry (3 or 4) but I also run it successfully on KVM, the only thing is in spanish 
but it’s only 3 or 4 questions for setup, after that you can configure almost everything using windows rsat and softether manager, so if you want to try it here:
https://github.com/gustavoparedes/SohoMiniServer
It would be easy to put there adguard and squid (of course authenticating against the directory). Also for the raspberry case I put hostapd to make it an AP that authenticates against the directory (using freeradius :))
