Bottom line up front: As a non-“hacker” how can I connect with people to collaborate and build an app or website?

This might seem like a silly question but bear with me for a moment. I have an idea for an app — a vision — but I lack the software development skills to make it. You could say I’m a domain expert needing a software expert to team up with. My vague idea is to share the profits, if any are to be had.

Where do I find such people? How can I vet them to see if our values match? How do I protect my idea so it is not stolen?

In short, how do I connect with someone who has the hacker skills to complement my knowledge domain skills and create value for us both?

Any guidance is appreciated!