As to what powers it, at 1:56 there is a brief glimpse of six(?) glowing red discs/circular objects under the board. I'd originally thought a rocket the motor most likely (perhaps H2O2 catalytic type for simplicity) but these do look more like turbines (model jet engines). Six for redundancy would certainly make sense as a failure of a sole power source would have a very unhappy result.
I think a damn good life jacket is more important than a parachute.
"Model" jet engines can produce up to 50lb thrust, apparently, and cost under $5,000. Smaller ones much cheaper. Looks quite doable, if you have the cojones to fly it!
https://www.youtube.com/watch?v=Ztx2Wud7-hY