Thirteen minutes, structured as steps rather than as a narrative, covering the vessel, the driver, the mounting and the signal source. The description points at a page on their site carrying the materials list and starting suggestions for each component, which is the part that saves you a weekend of guessing at diameters and depths.
The channel sells cymatics devices, so treat the component recommendations as informed but not disinterested. That said, the video does not withhold anything to push the product, and the arrangement it describes is the standard one: a dish coupled to a driver, a tone source, and lighting chosen so the surface reads on camera.
A sensible second video after a household-materials build, when you want repeatability and a rig that survives being moved.