Check: d ← f? No, d is left of f. Let’s map thmyl to disk by left shift: t (left = r) not d — so maybe ?
Wait — try left shift on “thmyl”: t (left = r) h (left = g) m (left = n) y (left = t) l (left = k) → r g n t k → not “disk”. thmyl brnamj disk drill enterprise 5.2.817.0 m altfyl
Actually, I recall from other puzzles: "thmyl brnamj" = "disk drill" if you shift on QWERTY: Check: d ← f