I came across this similar DIY build on YT recently - https://www.youtube.com/watch?v=pcAEqbYwixU https://www.youtube.com/watch?v=pcAEqbYwixU The tech is inter

I came across this similar DIY build on YT recently - https://www.youtube.com/watch?v=pcAEqbYwixU https://www.youtube.com/watch?v=pcAEqbYwixU The tech is interesting but I can't see the practical uses just yet :)