How would you implement a backend for a landing page with a contact form?

Question

Backend

Let's imagine that you need to develop a landing page that asks the server only to send user data from a form, the simplest one is first name, last name, phone number. How would you implement such a project for yourself, for the soul, to complete the gestalt, so that it would be pleasant to develop and then support? What would you write the backend on? What assembly would you do?

Answer 1

If this is just a landing page for collecting contacts, I would not cut my back, but put a form from mailchimp.com