I am a bit confused, lets suppose that TLS is broken in haskell libraries, or there is some kind of thing haskell has no libraries for and you don't want to los

I am a bit confused, lets suppose that TLS is broken in haskell libraries, or there is some kind of thing haskell has no libraries for and you don't want to lose time implementing it; what stops you from making a service for that task in another language?. I fail to picture a big system that is not distributed, maybe the problem of this startup required a monolithic system, or is it that a monolith project is in some ways easier to manage?.