I don't understand this comment.
Why would me having a video of an app I built be a hint that I copied it? Also, would I even have to provide such a video as evidence?
The 3 minute thing seemed to me a simple example of "keep it short to keep viewer attention".
EDIT: maybe you interpreted GP as meaning take a screencast of the code, while I am thinking of the working app?
A lot of "enterprise software" is stuff that you will never ever get on your home PC. Your employer only let you have access to the software under the NDA and IP agreement you signed, and unless they explicitly say otherwise, that also includes showing how it runs.
This isn't like showing off the feature you wrote for MS Word.
