To everyone confused by the "the end" it's not the final chapter yet, there's 4 more until Dorohedoro is finished: https://www.animenewsnetwork.com/news/2018-07-11/q-hayashida-dorohedoro-manga-ends-in-3-chapters/.134141
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CFK - I really liked the 3 "what we learned this time" notes at the end of each chapter that the previous scanlation groups translated and included. Maybe you can put it in the extra-translation work and re-edit yours to include those as well
they make for a great end of chapter moment