welcome to SN!
If you’re looking to build your own project, SN is the right place to share your progress, updates, and ideas.
If you’re looking to help out other Lightning startups, check out the jobs board.
As a thought-starter, it might be useful to go through all the apps on your phone and ask yourself how payments work on those apps right now. Can Lightning offer an improvement?
Most free apps are really just free because the user is giving up their data or some other scarce resource. Is there a way to help those users earn back their fair share?