Nintendo Switch 2 developers turned to a unique solution to achieve backwards compatibility with the Switch 1: emulation.

Specifically, Nintendo asserted that Yuzu violated the DMCA’s prohibition against circumventing software protections by dynamically decrypting runtime-encrypted Switch game ROMs using ‘prod.keys’ ...

such as by publishing links to emulators ' Ryujinx ' and ' Yuzu,' which allow Nintendo Switch games to be played on PCs, distributing illegal software, and by posting repositories of pirated ROMs.