Former (10 years or so) maintainer here, nice that someone is still using it. Unfortunately, the lack of support for modern web APIs (starting from SSL) makes

Former (10 years or so) maintainer here, nice that someone is still using it. Unfortunately, the lack of support for modern web APIs (starting from SSL) makes it a dead end for serious applications. But it is still useful to teach OOP in my opinion, the metaclass model strikes the right balance between simplicity and power; the only improvement to it might be traits, which in fact were first prototyped in Smalltalk.