via https://it.slashdot.org/story/17/02/01/0640248/gitlabcom-melts-down-after-wrong-directory-deleted-backups-fail
+https://docs.google.com/document/d/1GCK53YDcBWQveod9kfzW-VCxIABGiryG7_z_6jHdVik/pub#h.dgc3wwb1l1t6
