Simple Turtle egg gold XP farm

A gold and XP farm built around zombie piglins trampling a turtle egg, which walks them into a nether portal and funnels them to a kill chamber on the nether roof. It goes from level 0 to 30 in about a minute and makes roughly 360 gold blocks an hour. Under 25 minutes to build and almost no materials. Java only.

• Do not light or walk through the spawning area portal until the rest of the farm is finished. Since 1.21 mobs can generate portals themselves, and the link comes out wrong.
• On 1.21 and up, build the overworld bridge floor from magma blocks so chicken jockeys die before crossing. Otherwise they glitch out of the kill chamber.
• Put a dispenser with a lava bucket at mob foot level behind the chest on a button, to burn the piled up swords and rotten flesh and cut the lag.
• Replace the bottom glass of the kill chamber with obsidian. One misclick breaks glass and baby piglins get out.
• Magma blocks on the spawn floors stop ordinary piglins spawning there, which raises the rate.
• It can be run AFK. Hit one piglin so they aggro, the aggro spreads to the rest, and mob cramming kills them while still dropping XP.