On Tuesday, June 4, 2019 at 1:16:12 AM UTC-4, Tosspot wrote:
We are excited to announce that production versions of the Kindernay
XIV, our hydraulically operated 14 speed internal gear hub, are finally
available to order!

http://www.kindernay.com/

Go on! I dare you to look at the price...

Nice idea though. The key point is to separate the hub from the wheel,
allowing the hub to be moved between wheels relatively easily.

$1,493.69 Canadian or with the rear rim build $1,707.60 Canadian.

Cheers