In your Box2D port there is a typo:
directory structur.
In your post:
the author is a really go programmer
I think you meant good, unless it's some slang(??), and if it is then it's bad slang because go programmer makes me think of someone who uses
http://golang.org/It's very nice read even if I keep up to date with all posts.
Oh, and there is 1-2 years old version of rube that is integrated with box2d test bed code and uses gl and glui and is generally clunky but completely free.
There seems to have been a lot of changes, even changing the programming language for C++ to C# but still using SFML.
This sentence makes no sense, something is wrong, maybe for was from or to was from, depending if c++ or C# was final one.