Thank you for asking, much appreciated. :)

We'll probably do a small beta as we get the local cloud ready for release to make sure things are easy to use and work as expected. Since it'll be open source, I'm hoping the beta group can help find bugs and even send in pull requests if there are pieces they want added. The beta signup thread is here at the moment: https://community.spark.io/t/where-is-the-source-code-for-th...

Thanks, David