Nobody wants to hear this.
But the reason your software is hard to change, hard to test, and hard to explain to a new engineer isn't your tech stack.
It's that your code doesn't reflect how your business actually works.
Your engineers are using one word — "customer," "order," "student," "subscriber" — and meaning six different things depending on which part of the system they're touching. Your domain expert says "order" and means something completely different from what your database schema says "order" is.
That gap? That's where complexity lives. That's where bugs are born. That's where senior engineers spend their Fridays.
