Isn't this true of any greenfield project? with or without generative models. The first few days are amazingly productive. and then features and fixes get slower and slower. And you get to see how good an engineer you really are, as your initial architecture starts straining under the demands of changing real world requirements and you hope it holds together long enough to ship something.
"I could make that in a weekend"
"The first 80% of a project takes 80% of the time, the remaining 20% takes the other 80% of the time"
"I could make that in a weekend"
"The first 80% of a project takes 80% of the time, the remaining 20% takes the other 80% of the time"