Just go to GPT and get me the code today!!!

Like wtf why does every non-tech guy thinks GPT is the solution for each problem.
So, a workmate wanted a fullstack system ready in 2 days and argues that its too easy with GPT. I mean yeah GPT helps, sometimes, on frequent rare occasions. But, that can't be the solution to everything, like ask it to setup the whole backend frontend integration, will it? ask it to manage assets will it? ask it to write complex code, it fails, miserably, okay like me but that's the point. Just because random transformers pop up each week containing some random shitty weights (not always agreed) that can't replace a full stack developer. These 'attention' seeking models are as good as another tool, a bit efficient, but at the end of the day its just a tool, all it does is lessen the typing time but gives more errors too. The average time remains the same. And my non-tech manager can't understand he can't do it himself earlier using GPT. Succkkkkkkssss!

I want to build a code transpiler/ transformer as a side project I looked around but I can't find where to start.

Does anyone have any useful info on this ?