Yadeo is a simple blogging platform build with PHP.
Although there are probably lots of blogging systems already available they either suck or I am just to lazy find them and test them out. Besides I always like to reinvent the wheel where it isn't needed.
This is not production ready, not tested, not functional, not even alpha and everything in it will change. Even the name may change. If you use it in it's current state it will probably set your cat on fire. Be warned.