Serverless computing is a concept (and buzzword) where code can be executed by some other service. This allows you to not have to worry about maintaining your own server. From your point of view it may feel like it is serverless, but there is still a server somewhere processing the Lambda code and returning a result. Xano's implementation of Lambdas are processed on their own servers. Since Xano maintains its own servers and you are supplying the code to be processed, one could make the case that Xano's Lambdas are serverless. There is still a bit more nuance to consider, when comparing different serverless solutions to each other, but the main benefit of Xano's implementation is that it is all contained within Xano, which means any Xano customer can get started using it right away.