Serverless is a buzzword that everybody seems to be talking about nowadays. You may like the term or not, but the important thing here is what it describes. In a nutshell, Serverless means the application's scale is constantly adapted to ensure that you always have the exact amount of resources you currently need available. In case of doubt, this may even mean: none at all! For you as a user, this means that you always pay only for the capacity you need to provide a response to the queries to your application. If there are no users or requests, you pay nothing at all.