Judges and reviewers fund what they can click.
A hackathon gives you a few weeks and a blank screen. Most entries are slides with a promise, and most entrants run out of time before the building is done.
Starting from something that already works changes the race. You spend the weeks on your twist, your users and your story, not on the plumbing.
The race board lists live hackathons and grant rounds with their countdowns, and for each track, the working apps that fit it and why. Each program's own rules decide what you may submit, so we link them.