Here are the three Apps that I demoed during my Session "Advanced Zero Touch DEP" Some Assembly Required... Good Luck.
Download locations:
SplashBuddy - Francois Levaux-Tiffreau
http://jamf.it/splashbuddy
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DEP-Enrollment - tramscloud.co.uk
previously maintained by Gavin Pardoe
http://jamf.it/depenrollment
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Progress Screen - Jason Tratta
http://jamf.it/progressScreen
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https://www.jamf.com/blog/advanced-zero-touch-dep/