I see a fair amount of companies writing internal services in sinatra/hanami/etc and using Rails for user-facing routes. The smaller frameworks are great but as

I see a fair amount of companies writing internal services in sinatra/hanami/etc and using Rails for user-facing routes. The smaller frameworks are great but as soon as you hook up an ORM, user session management, conditional view rendering for different clients, background jobs, caches and all the rest then you often end up with a worse Rails. If you have a service that you know upfront will need not need that then the simpler frameworks are a much better choice.