The irony here is few years back silica was promised to become opensource. They keep promising and talking about open source from before release and they did not opensource almost anything. I think they call it "opensource collaboration meetings" according to their last announcement when they talk about stuff but never do

They even make first releases of SDK not public(what would be the reason except hype and elitism, as people love to be in private groups, to feel better than others and companies use it for marketing).