Given that there are regions in my country which have no good local events calendar yet but it would be easy to implement such an aggregator: would you recommen

Given that there are regions in my country which have no good local events calendar yet but it would be easy to implement such an aggregator: would you recommend me to found a company for such a product? (Let's call it "WhatHappensInHannover.net" so we both know what is intended.)