Ask HN: Where to find a partner / co-founder online for a side-project?

I'm a UX / front-end guy and I work on side projects in my free time. Usually I can't get these projects live, because my back-end skills are too limited to properly set up the back-end, which is sort of frustrating.

In real-life I hardly know any back-end programmers (who would be interested to work on such projects).

Do you have a suggestion where I could potentially find someone online to finish these projects with?

The problems are: - There is no guaranteed revenue from these projects (it's validation stage after all) - I can not officially give away equity at this point (it's validation stage after all, so it's not even incorporated) - I would prefer someone, who is actually interested in the project and doesn't just want to make a quick buck (that's why I wouldn't like to hire a freelancer)

So basically I'm looking for someone, who would be willing to put ~10h a week into something, which might become something or might just not.

Where would you shout out to find someone like this?

Thank you