Simplest skinniest curl based (REST) code to add a new lead

Simplest skinniest curl based (REST) code to add a new lead

I am using PHP but I really hate the idea of adding over 600K to my project just to call Zoho.
I need the skinniest example of how to add a new lead to an existing list that exists with a v2 (or later) supported REST (curl based if needed) call.

The API options are far too confusing for a simple use case.  I have an integration that needs about 2 K of code...probably less.  Adding an entire SDK to my project is WAY too expensive.

Do you have a solution I can refer to?