Have a static site but looking to add backendy stuff — such as subscribing to a newsletter — to it? Geoffrey Dhuyvetters from madewithlove walks us trough setting up a serverless function with Vercel (formerly known as Zeit):
In this article I’ll walk you through the steps to create serverless functions with Vercel. These functions will provide you with a place to add server side logic like verifying captcha’s, sending emails or liking posts that you can use in your static sites.