Show HN: Cfddns – A No Nonsense Script to Dynamically Update Cloudflare IP (github.com)

Its purpose is to expose a server running wherever you like to the internet reliably. If that's not what you mean, then I don't know what you mean.

See e.g. https://developers.cloudflare.com/pages/how-to/preview-with-... or https://erisa.dev/exposing-a-web-service-with-cloudflare-tun....

It does one better. It has zero interruption when your IP changes because it isn't reliant on your IP.