There's a link to the source code on GitHub[0], is that not the full source though? Just searching for a comment like 'hello there' from the photo[1] doesn't seem to exist in the repo.
[0] https://github.com/chrislgarry/Apollo-11
[1] https://hackadaycom.files.wordpress.com/2016/07/apollo-sourc...
Googling some of the surrounding lines suggests that it is available here:
https://github.com/avtobiff/virtualagc/blob/master/Luminary1...