Look what sowed up in my Youtube playlist.
A bit of background: Several years ago I pledged to a kickstarter by Jeri Ellsworth. It was successful but after a few years their company had to close. Amazingly, they managed to find resources to pay back all the money they got from the kickstarter.
But she didn't give up, and now they're restarted the project, and of course I pledged to it.
She's a great engineer, also check the other videos.