Same. I found this because I got my piano tuned yesterday and it bothers me it can't sound that wonderful every day - bothered me even more that it did not seem to exist as a commercial project or DIY solution. I'm in KC so might try to connect, maybe even get it for my Kawai!

Supposed to be able to install on any piano, and remove without any sort of permanent damage or anything, can see on this page https://dgdevices.com/gallery