A quick glance shows that they developed their own Bios to do this, Yuzu specifically requires you to insert a copy of the Switch's firmware, it won't work othe

A quick glance shows that they developed their own Bios to do this, Yuzu specifically requires you to insert a copy of the Switch's firmware, it won't work otherwise. It seems a bit grey as that would mean it's really the users who broke the law, but at the same time, the piece of software is quite literally useless without it. Even if they had their own absolutely terrible firmware with bad compatibility it'd be an easier defense to me. As is, their code is useless without an illegal-to-add addition.