Cool game and concept! I've found a few bugs tho:
After getting a game over, I can't interact with the book anymore even after going to the main menu to start over, with and without the tutorial.
A second, minor bug/oversight is that when you have a stone slab in the rune device, you can't back out of it to double check the book. You can only burn the rune onto the slab, which isn't great. I have to set the rune before putting the slab in so that I can reference the book.
The finished slabs have a bit of difficulty going through the slot, and several seconds before I got a game over one just got completely stuck. I'm not sure whether that was the result getting a game over and it refusing to accept any more slabs, or if it was a geometry issue.
Edit: Pretty sure it was a geometry issue, as I just got another game over right as I was putting a slab into the slot.
This last thing isn't really a bug, but if you grab the order sheet from the printer and it's really long, there's nowhere you can conveniently put it. I had to put it on the floor at first, but was eventually able to prop it up against the wall by the printer.
Regardless, love the game!