Thank you for playing and giving a feedback!
Unfortunately, the game jam time constraint, we didn't had time to calculate the perfect time to each item expire and didn't implemented a "craft book", but it's on our plan. Which bugs did you found?
I played the game again to hunt bugs, but I have realized they are not actually bugs, just things differing from my expectations :). Sorry. For example, each time a stone is generated, I would expect it to appear on the "Get it!", but it takes a little bit longer. And then each time you start dragging from an empty spot or outside the board, you grab the first thing your mouse touches (I'd expect nothing to be grabbed). And the text about stone doesn't go away when you remove a tool. So it's not really buggy :), it just confused me, sorry ;).