Broadstreet created the free open-source content management system for our first Grow and Strengthen group in 2013. It is available to anyone who would like to use it.
Blargo was built as a child theme of the popular Largo theme by the Investigative News Network, which built on the foundation of NPR's Argo project.
Full download and documentation for Blargo can be found here.
If you have more questions, write to firstname.lastname@example.org.