I was able to build the two packages I needed, thanks.
The box is now a nice working gateway for my LAN (NAT/PF), serving encrypted DNS cache (named/dnsproxy), DHCP, VPN. I couldn't have even started without your help,
I am very grateful for that, thank you very much
I guess now I have to be very careful about modifyng anything, having a current flavor installed.
Regards,
Guillaume.