Dynamic DNS Client configuration on OPNSense

[enkrates]

Hello,

I want to use OPNSense Dynamic DNS Service with Porkbun registrar to tie a hostname to a dynamic IP address.

Porkbun allows you to edit DNS records via API https://kb.porkbun.com/article/190-getting-started-with-the-porkbun-dns-api.

They also provided a Dynamic DNS client to use https://github.com/porkbundomains/porkbun-dynamic-dns-python.

However, I am not exactly sure how to incorporate to OPNSense. Porkbun is not in the OPNSense Dynamic DNS Service's "Service Type" list. I selected "Custom" and not sure where do go from here. Where do I enter the Porkbun's API key and Secret Key?

Any advice? Thanks!