I do not consider any of your examples really that simple or boring. Boring to me is a load balancer, app server and cache. Once you start talking about backgr

I do not consider any of your examples really that simple or boring. Boring to me is a load balancer, app server and cache. Once you start talking about background jobs and queues I don’t see how that’s any simpler than the alternative. You could say Google, running Borg, is basically a database with a bunch of load balancers and background job processors. Obviously the complexity is in the scale and implementation.