I tried to use LLMs to help me with server-side pb coding, but it was mostly a flop. LLMs don't have an up-to-date state of pb's API. 2 out of 3 times the LLM would give at least a hint how to go about something and the rest is me manually editing the code, reading the docs or looking at pb's source code. All in all, I consider it a nice "pair-programming" type of experience but one can't rely on LLMs to do the pb work for you.