I do 70% without programs the another area is 30% MCEdit (the area with MC Edit is the walls)
Extras: Have a storage room blocked with Spruce Wood to open this door you need to place 1 Pufferfish on you inventory but do this fast!
Wait what? Could you explain a bit more about how your extra works with the Spruce Wood and the pufferfish, I'm kind of confused by this. Thanks.