I have been working with a couple of friends on something like this for the last couple of weeks as a fun/side open source project.

It sucks when you see that there is no point on working on anything because it is or will already be made by someone else. I guess we will carry on just for the sake of doing it, learning and having fun.

Any advice on how to deal with this constant struggle with my motivation?

By the way, congrats to the guys, it is an awesome piece or work!