There is some overlap with that case, but also some major differences. Psystar was distributing computers with a modified version of Mac OS X preinstalled, whereas Yuzu is not modifying or distributing any Nintendo-copyrighted materials. However, Psystar was also charged with violating DMCA section 1201(a), the section dealing with creating copyright circumvention devices, and Yuzu could potentially be found in violation of that.

However, Yuzu requires that you bring your own decryption keys obtained from your own Switch device; it cannot circumvent copy protections without that. The only circumvention code included in Yuzu is basically just standard 128-bit XTS-AES decryption code; it seems like a ruling that makes that code illegal to distribute would be a bad idea.

Psystar order granting permanent injunction: http://www.groklaw.net/pdf2/Psystar-242.pdf

DMCA 1201(a): https://www.law.cornell.edu/uscode/text/17/1201

Yuzu's crypto code: https://github.com/yuzu-emu/yuzu/tree/master/src/core/crypto