This is one of the examples where the series of long videos is not the appropriate medium.

Yep, the few minutes of demo'ing the ready device need to be a video. But the rest -- the "build" story, parts list, internal constructions, non-obvious details would be so much better in traditional format, text + pictures.

Well framed, high resolution pictures, so I could look at each part carefully and not try to pause the things at just the right moment. As well as nice text with sections, so I can skip over parts I do not care about, and jump right to the interesting parts.