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Nintendo DMCA Notice Wipes Out 8,535 Yuzu Repos, Mig Switch Also Targeted.
(torrentfreak.com)
This is a most excellent place for technology news and articles.
I've seen hearsay that there have been Yuzu patches specifically to aid compatibility with TOTK before it was officially out, which would have greatly supported the "mainly/primarily used for piracy" argument in court.