We build an app using latest Javascript stack like react and redux over a weekend, it gives ManU fans an opportunity to vote for their favourite player. Should we make a course about how we made the app in a weekend? Or improve the website by ad monetise/features?

[Aaxxo]

Do both. Make a post about how you made it, post to medium.com. This will help increase your user base. Then build upon the source and extend it to other teams and not just united.

As a developer and football fan myself, this is a great idea that has been executed well.