What is the project that community wants to see?

Hi everyone. I'm a co-creator of the first Studio that is fully dedicated to front-end. Obviously as every creator of anything I strongly believe that my project will be the one that will change the world. To the point. I want to let everyone know about existence of my tool, but in the same time bring something valuable to the community, which I think is fair exchange. So, what project, website or web app you crave to see being developed? I want to make a tutorial out of it on YouTube, explain how it's done and obviously give access to all the code of this app to everyone.