Yes indeed. In the case of juggler, if you check my CV you'll see that I'm very far from being a vibe coder - I've been shipping hugely complex products for 30 years, I've written frameworks, entire UI libraries, audio libraries, a DAW, a couple of compilers.. But this took me about a year to get right. I must have re-architected the whole thing more than 10 times, it took every bit of my experience to not screw up the data model. It's actually one of the most difficult and interesting projects I've done. So yes, if you can get claude to churn out a juggler-like app in a weekend, it probably ripped off the source code!