I've just created a source repository for stdgui on GitHub!
Right now it contains only a prototype of the layout algorithm (called "Snap Layout"). I say "only" but the prototype is a complete implementation of all the features I want out of the layout engine. It took a rather long time to conceptualize and develop (the many hours spent walking my then-new son to sleep were actually design sessions). The prototype gives me a very solid starting point to begin realizing stdgui.
