Was groups.drupal.org built with organic groups?

I'm not sure if this is the right place to post this. Excuse me if it isn't.

Was groups.drupal.org built with organic groups? I believe I heard that groups.drupal.org built with organic groups in a podcast (maybe Lullabot?) in passing. The podcasters were very nonchalant about it like building groups.drupal.org was no big deal.

If groups.drupal.org was built by installing a bunch of modules and configuring them in some way without any "programming" that's pretty impressive. As a relative newbie to drupal but a PhD student in Computer Science groups.drupal.org impresses me if it is in fact easy to build.

groups.drupal.org strikes me as a kind of uber-forum and is much cooler than the built in forums in drupal

if there were a tutorial somewhere showing how groups.drupal.org was built with drupal i think it would evangelize drupal well.

Using drupal itself to evangelize drupal is the most impressive to me. If I go to groups.drupal.org or drupal.org and its slow or has issues that gives me pause 'cuz I figure if the people who built drupal can't get something to work there is a fundamental issue beyond me getting up to speed ... on the other hand if drupal is being used to improve drupal through apps like groups.drupal.org then it attracts me because there is an elegance to it and shows drupals utility

Is there a tutorial somewhere discussing how groups.drupal.org was built or a list of modules used or notes somewhere when groups.drupal.org runs in to security, performance, etc. issues.

I think this info would evangelize drupal well.

Thanks