Inspired by various challenges and tutorials like ethernauts and speedrunethereum, I have created my own.

The Solidity Patreon Challenge is a challenge to create a (very basic) clone of Patreon in Solidity. The specification allows users to:

• Create a new Patreon with a subscription fee and subscription period
• Charge the fee to their subscribers
• Subscribe/unsubscribe to a Patreon

I have provided two interfaces with full NatSpec descriptions: IPatreon.sol and IPatreonRegistry.sol. The goal is to implement these interfaces and pass all the unit tests. Best of luck!