To install the appstore app, right-click on your turtle to open the GUI, run
pastebin get iXRkjNsG appstore. To install farmPumpkins, run
appstore get UltraBob farmPumpkins.
Farm a 9 x 9 pumpkin field with two double pumpkin rows
Your turtle must start at the level above the pumpkins (hovering 1 off the ground probably) next to a chest, and just outside of the rightmost pumpkin row.