I have needed more time I expected, but I finally finished the challenge. This experience has been enriching. I have met people, I have learned how to contribute with an open source project. I realized all the work behind many tools we usually used without keeping in mind who is doing our work easier.
I tried to do the challenge last year, but I wasn't confident, and finally I left. I regret that, but now I have compensated.
Haven't you done this challenge? You have still 1 week! Don't doubt and try it, because these events are funny and constructive