I'm a Linux user, and I occasionally contribute to parts of the storage stack (btrfs, bcache, blkid).
’Twas the night before Christmas, the office was closed,
The transom was shut, the staff home in repose;
The stockings were hung by the chimney with care,
But St. Nicholas won’t be coming because this is a Designated National Security Site within the meaning of Para 4.12 of Section 3 of the Official Secrets Act (Amended) and unauthorised intrusion on such a site is an arrestable offence…
— Overtime, Charles Stross