A clone of the alleged healthcare.gov source at https://archive.org/details/healthcare-gov-gitrepo. This was also mentioned at  http://www.theverge.com/2013/10/18/4852720/why-the-government-unpublished-the-source-code-for-healthcare-gov-github.  This may (or may not) be the same code found at https://github.com/Conservatory/healthcare.gov-2013-10-01. which I in turn cloned at https://github.com/mobilemobsters/healthcare.gov-2013-10-01.