Staker
It is a contract on rinkeby,and allows people to stake x amount of Eth until they reach a certain amount Y. They can withdraw their stake later. Owner can send the total amount to 3rd address
About
The problem it solves It solves the problem of fundraising for startups. For example if i am a startup founder I can create an instance of this contract and ask peopele for investments. If they liek my project they can invest into it. However, if I sit on the funds for too long (without using them) the users will be able to withdraw their funds after some time.
How it's made
Challenges we ran into The main challenge was that I had to completely learn React, a frontend language , for this project and that is what took most of my time. Also, since I had taken the decision to complete this hackathon oon my own, it became very hectic. Nevertheless, it was a good first experience and I am definitely going to take part in more hackathons ins future. But now, with a team ! :)