I really don't trust any "I've never touched a line of code in my life and I just made this very complex app in two hours with claude"

I just started a new (kinda simple) project with roo code and claude 3.5 sonnet.

Stack: nextjs + supabase.

A few minutes in, it can't even install tailwind because it is a new version or whatever has changed the way it works and it won't even compile and it runs in circles. How are these "non-devs" getting anything done??