I'm not sure what exactly is meant by BAAS (I get backend as a service... but that seems quite vague to me). I don't have experience with firebase, but I have

I'm not sure what exactly is meant by BAAS (I get backend as a service... but that seems quite vague to me). I don't have experience with firebase, but I have used serverless on AWS API Gateway / Lambda with AWS Cognito for auth and dynamodb as a backend database. While the raw hosting cost is more expensive I assume than if I were to roll my own docker/kubernetes/elasticbeanstalk/etc solution, it scales without me worrying about it and the the extra time it gives me can be invested elsewhere. I believe that extra time has given me--as an indiehacker--a significant advantage over other, larger, competitors. My experience with managing servers, doing deployments by hand, setting up automated deployments has been 100% not enjoyable. So I prefer to pay AWS to handle as much of that as possible for me.