Zero Trust Dynamic IP

I have a dynamic ipv4.
I do have a script updating my DNS to point to my router public IP.
Can I use zero trust?

It may be worth looking at the Cloudflare API documentation to see if zero trust is exposed with it.

If so, you can use your script to check your external IP and update the zero trust IP to match.

This is what I did for DNS, but I apologies as I haven’t looked at the API documentation yet for this purpose.

I’m confused on what you are looking for zero trust with? Are you talking about a tunnel? If so, then it depends on what you are trying to expose.