I see no reason to keep the code for Go2 and Paragraphs to myself. I have no plans to continue developing them, have received no requests for support, and have seen very, very, few sales over the past few months. So, as of now, both Go2 and Paragraphs are released as open source, under the MIT license, available on GitHub.
It is quite likely that there is a ton of bad code in there. Read through at your own risk.