Zero to Hero: Crafting a Custom GPT

OP here. After getting great response to a Cover Letter Assistant[0] GPT I made, I wrote this walkthrough on how to build them.

The article focuses on structured prompting and programming in English for a "middle path" between simple prompts and a custom LLM app that you'd need to write or host.

[0] https://chatgpt.com/g/g-DCSfZunLp-cover-letter-assistant