You shouldn't, just because there are similar projects out there already doesn't mean your implementation is barred from being of value, be it (re-) sparking a discussion or solving certain aspects more effectively (unless maybe you outright copied from other projects which i doubt you have)
Nope, no copies. This is (at least I thought it was) an original project. The idea was to create new web components little by little and use them as building blocks. Like fos-bar, for example, it's a generic bar that can be used on the fos-desktop or the fos-window.