Holy Shit! That's incredible. Thanks for the link.
Even cooler that it works on Analogue Super NT. That's two layers of video game history preservation right there :) After all, eventually, some day, the last working SNES unit will fail...
I don't see very much information on retro.live's page, but I hope they heed the lesson of Xband's demise and open source the important bits of their work in some time.
I'm sad that they didn't get anything meaningful on the retro.live website before the documentary launched. Seems like a massive wasted opportunity. Why not document the project? There's nothing on the site.