iirc, it's sophistory's brainchild: in 2012 they asked what if a contemporary-era Sherlock wasn't a toffee-nosed ponce with enough money to buy a fancy coat? But was instead a black kid from a council estate? What would Sherlock Holmes look like then? And the idea took off from there -- quite a few people wrote up headcanons, created graphics or vids, wrote fic...
For a while, someone was collecting them all at the 221b-baker-towers tumblr, although that blog is now a few years out-of-date. The smallest fraction of material is archived at AO3, but nothing like enough of it.
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Date: 2018-12-21 06:37 pm (UTC)For a while, someone was collecting them all at the