On Windows, create desktop and Start Menu shortcuts that starts Purr Data in K12 Mode.
On Mac, create a minimal K12 Launcher in the .dmg that starts Purr Data in K12 Mode. The user needs to put the launcher in the same directory as the Purr Data app.
Prepare icons and a list for the K12 abstractions.
(No changes to the Linux building phase since it's already taken care of by Pd-l2ork 1.0.)