There's an art to making a good demo video. You need to convey technical depth, but you can't get lost in 20-minute screen recordings. You need to hook your audience from the start, but you can't lose the plot or neglect critical context. And you have to check all these boxes in a span of 5-7 minutes. But when it all comes together, it's a thing of beauty — like it did on these videos for Zero Trust, Open-RAN, and IoT security validation.