A few genuine feelings:

It’s not about replacing programmers, but about reducing the costs of "repetitive work" and "context switching"
The more you break down requirements and understand technical boundaries, the more intuitive it becomes to use it
Don’t expect perfection on the first try; iterative thinking is very important, and it’s normal to make three revisions before finalizing a product
If you're interested, you can check out the practical details.
If you’re also using Codex or similar tools, feel free to share your methods, and let’s learn from each other.