Using a Raspberry Pi 3 as a Wifi access point and bridge

I have been able to configure this set up, using Raspbian Lite, by following the instructions as follows:
https://blog.ithasu.org/2016/10/using-a-raspberry-pi-3-as-a-wifi-access-point-and-bridge/

I can’t get it working using Dietpi…
Any help would be welcome…

I’m posting this here, because I think this would be something that many users may want for their network.

Thanks,
j-parker