XP Border

XP Border is a datapack where your world border grows as you gain XP.

Start: You get 10 seconds to pick a spot. Then the border shrinks to a 1×1 block around the nearest player, in every dimension, and the world spawn is set there.

Growth: Each new XP level pushes the border out 1 block on every side, and an actionbar message tells you how much it grew.

No shrinking: It tracks your highest level, so spending XP on enchanting or anvils doesn't shrink the border.

Multiplayer: Every player's levels count toward the same shared border.