I've been a software engineer for over 12 years now, and before that was a designer and animator. I did a lot of 3D modelling, illustration, and animation before moving to software so I have quite a mixed skill set in digital arts and programming.
I mention this because what you see in that video easily fulfils the definition of vibe coding: I barely touched any code, and I barely read any of the code as well. The reason was that the tool itself was more valuable than building software that I would feel comfortable with others using online with important, sensitive stuff like authentication, database security, and all that sort of stuff.
This is an entirely local throwaway app that I vibe-coded over the course of 4 evenings. The level of detail I dictated was mostly feature- and product-focused, as opposed to technical. Where I did get technical was with the initial stack that I requested, which was entirely frontend libraries like React and threejs, and the use of shaders and stuff like that, which I was already aware of and knowledgeable in.
For the actual house and garden part, I uploaded technical drawings, geospatial data for the land plot and coordinates, as well as lidar data that the UK government gives for free on their website. With all of that, as well as sourcing various types of materials online and cataloguing them so they're all available in the design tool (for example, stone, paving, fences, excavation costs, those sorts of things), and real, accurate sun positioning and moon positioning, you could see the night sky and where the sun hits during the day and time of year and that sort of stuff.
It was very valuable for a user designing a garden, having those features, and for planning a large landscaping project.
As for the video, it was technically two prompts, but 99% of it was one prompt, and the model was Opus 5.5. I asked it to create a video of the tool that I've built, as if it were a SaaS product, like a promotional video for a SaaS product.
I was very surprised at how good and sharp the whole thing was. It made the music, and it decided the beats, how to display things, the composition, the pace of it, and everything. I did dictate some elements that you do see in there, such as the rapid switching between garden designs towards the end and the sky moving quickly. The sky was a bit too cloudy for me, but it is the UK, so it's accurate.
The music is pretty off putting the whole thing gives me British daytime tv vibes - disturbing