With shaped crafting I always give this suggestion: Make it so that the player can make a recipe even if their character in game hasn't learned it. If you know a basic recipe exists and you can't make it because your character just "doesn't know it" your immersion will probably be broken. And I will be checking out "on the future of cave" right now. I will post a separate comment with feedback soon! I also can't use discord, because it makes my computer funky. I don't know why. :(