Port Forwarding on Dietpi-VPN PIA?


I have dietpi-vpn running with a PIA account. How do I setup port forwarding using dietpi-vpn? I run dietpi headless on a Raspberry Pi 4 4gb on DietPi v8.6.1. I also have access to Mullvad VPN, what would be the best way for port forwarding for that too?

PIA provider manual instructions for scripts, but I’m not sure how to incorporate this with dietpi-vpn Manual Connection and Port Forwarding Scripts for Linux - Knowledgebase / Technical / Application Settings and Features / Application & Features - PIA Support Portal

PIA also has a github for manual connections but I still want to stick with dietpi-vpn if possible and have port forwarding.

Thank you