The paywall as far as I know isn’t that much of problem. Cemu has/had a paywall for years. Several other, though less successful, emulators have had paywalled content/early access as well. The BLEEM emulator that was brought to court was a paid commercial product. So that currently is perfectly legal within the jurisdiction of those cases. Nintendo’s case against Yuzu was about piracy/DRM circumvention. That wasn’t brought to court, so we don’t know the outcome however.
Here’s a link to an instance of radicle for Yuzu. It’s a p2p git server implementation. I haven’t looked too much into it yet, but the tech seems interesting.