Close, but not quite. D-K is the law where someone who's really good at one thing (like writing software) thinks that this means they're super-smart and therefore must be an expert at everything else.

I'm afraid that is also not correct. Dunning-Kruger is defined as people with low ability in a domain overestimating their own ability in that domain – it does not require someone to be really good in another domain.

https://en.wikipedia.org/wiki/Dunning%E2%80%93Kruger_effect

I think you're at D-K peak about D-K

That's the one.