Once your environment is configured and you're writing good types, the only errors you see are when you do something that violated your type rules - like calling myRecord.names gives you an error "Property 'names' does not exist on type 'PlayerRecord'. Did you mean 'name?'"

I don't know if the issues you're having is bad setup, or type system abuse. Try a typescript forum or chat group?

I'll admit that, coming from C++, I'm 100% bought in on the usefulness of type systems; but I can't imagine refactoring or making major changes in a project written in untyped JS.