I did something similar.
I used Proxmox and then installed PfSense as a virtual machine.
You might want to look into OPNsense and PfSense. There are addons for both that do the same as AdGuard and are free and open source.
I had good experiences with pfBlocker
AGH can also be installed alongside OPNsense or pfSense as well, either by installing manually or in the case of OPNsense there’s a plugin in the community repo
I did something similar. I used Proxmox and then installed PfSense as a virtual machine. You might want to look into OPNsense and PfSense. There are addons for both that do the same as AdGuard and are free and open source. I had good experiences with pfBlocker
AGH can also be installed alongside OPNsense or pfSense as well, either by installing manually or in the case of OPNsense there’s a plugin in the community repo