Slight warning if you go for the Twitch launcher and Skyexchange - several quests seem to be borked - the 'compressed sand/bone meal' quest won't complete, and several others have 'Item Placeholder' in the spots for what's needed to complete the quest. Pack owner doesn't seem to be responding to comments on it either, and has already started 'Skyexchange 2 Lite' (has no quests).
That said, I did like the 'infinite dirt' tweak that has been implemented in it. (It's only the starter block that does it, though.)