Thanks for the feedback! Part of the fun of the puzzle, in my opinion, is decrypting the vague instructions. Where I personally think trouble comes in is in which instructions the player should be focused on. The book was originally going to be chapter-locked, so the instructions would still be somewhat vague, but at least give a more clear idea of the instructions the player should be currently focused on.
None of the extra bits (the seal, the safe, the microwave) should have any effect on progression! They're just unwired bits that were originally going to be parts of the puzzle.
Thanks for playing!