Is revenue a factor? Because if so, I’d argue not spending the two days building something.
I went last year — didn't have an idea to work on nor anyone to work with.
Met some awesome people I still hang out with, hacked on some cool stuff, and later applied late to W19 with one of them (we got an interview).
Highly recommend.
From the more details page after you click through the link
Can this be made remote? It'd help us non Americans/American non Californians to apply.
From the application page :-
Important note: This is an application, not a signup form. We have an application instead of a first-come, first-served signup because it helps guarantee a diverse group of participants and that matters a lot to us.
It seems counter intuitive to base this in Mountain View if you care about diversity. Non American Hackers, Americans who aren't in California get disqualified immediately.