Same here, that's why I sometimes wish I had saved some screenshots for my own use or even for sharing but I have a feeling Apple would have hunted me down for it. That's probably why we don't see so many of them in the wild. Even in the orientation you'll hear stories about how seriously they take their ability to surprise and delight, with an emphasis on the surprise. :)
I also remember there being two internal wikis for development and having access to both. Maybe one is called luna and the other is just straight out called purple?
You get root on the device simply by authenticating as root with password alpine. Sometimes you'll get your hands on iDevices with weird specs like 3.75GB of RAM etc.
There is also AppleConnect which is Apple's internal single-sign on.
What I find fascinating the most is honestly how I am unable to find recent screenshots of these software. They are all screenshots of really old versions with outdated UI.
Apple must have a special way of taking these down or doing offensive-SEO and burying them in results because while I was able to find search results for "apple luna internal wiki", I am no longer able to.
Is there any videos/screenshots of PurpleRestore and similar tools? I've searched and can only find a single picture and descriptions.