What is Revolut ramp?

Can you please explain what Revolut ramp is in simple terms? I've heard it mentioned in the context of cryptocurrency and finance, but I'm not entirely sure what it entails. Is it a new feature on the Revolut app? Or is it a separate service that allows users to buy and sell cryptocurrencies in a more streamlined way? I'm curious to know how it works and what benefits it offers to those interested in the crypto market.