Set up your world in one command

summon FallingSand ~ ~1 ~ {Block:dirt,Time:1,Passengers:[{id:FallingSand,Block:redstone_block,Time:1,Passengers:[{id:FallingSand,Block:activator_rail,Time:1,Passengers:[{id:MinecartCommandBlock,Command:" /gamerule logAdminCommands false"},{id:MinecartCommandBlock,Command:" /gamerule commandBlockOutput false"},{id:MinecartCommandBlock,Command:" /setworldspawn ~ ~ ~"},{id:MinecartCommandBlock,Command:"/gamerule keepInventory true"},{id:MinecartCommandBlock,Command:"/gamerule doDaylightCycle false"},{id:MinecartCommandBlock,Command:" /time set 1000"},{id:MinecartCommandBlock,Command:" /gamerule doMobSpawning false"},{id:MinecartCommandBlock,Command:" /gamerule mobGreifing false"},{id:MinecartCommandBlock,Command:" /gamerule doMobLoot false"},{id:MinecartCommandBlock,Command:" /gamerule doTileDrops false"},{id:MinecartCommandBlock,Command:" /gamerule doFireTick false"},{id:MinecartCommandBlock,Command:" /gamerule doEntityDrops false"},{id:MinecartCommandBlock,Command:" /gamerule sendCommandFeedback false"},{id:MinecartCommandBlock,Command:" /gamerule spectatorsGenerateChunks false"},{id:MinecartCommandBlock,Command:" /say Done!"},{id:MinecartCommandBlock,Command:" /fill ~90 ~-4 ~90 ~-90 ~-4 ~-90 obsidian 0"},{id:MinecartCommandBlock,Command:setblock ~ ~ ~1 command_block 0 replace {Command:fill ~ ~-3 ~-1 ~ ~ ~ air}},{id:MinecartCommandBlock,Command:setblock ~ ~-1 ~1 redstone_block},{id:MinecartCommandBlock,Command:kill @e[type=MinecartCommandBlock,r=1]}]}]}]}