The problem zK-DaoHub solves

The traditional daos, I think, are somewhat centralized, as they ask users to stake some tokens for their entry and give them the power to make decisions about the dao. This gives them more power than other users. zK daoHub solves this problem by allowing users to create and join daos but with some restrictions, like verifying with polygon ID or anon aadhar to enter the dao. Once they enter the dao they can create proposals, give prize money to the top contributors and also vote on proposals. All this is done using zero knowledge proofs using semaphore.

Challenges I ran into

Zero knowledge proof verification using semaphore was a huge hassle.