Next.js
also Next
A React framework for building full-stack web apps with server-side rendering, file-based routing, and built-in API routes.
Analogy
Like a pre-assembled toolkit that turns React into a complete website-and-backend builder.
Why it matters
It's a common stack for building custom funnel pages and lightweight backends that complement your GHL and automation work.
In practice
You build a custom lead-capture page with a Next.js API route that posts submissions to a GHL webhook.