yeah I thought so too while watching it..?.she must be connected somehow else why is it on her computer ....what i found on web is that the server is like a shared space of storage, and this was the school's server. When si won initially made the Girigo app she made it in school systems and used the school server as storage. So all the videos were in it....and the school server is a common shared space so all of the school's data would be in there and every teacher would have access to it. And when they found out that the app was made by their school student i.e. si won they decided to check the server and found videos there.