Suddenly, the iconic Minecraft title screen flickered to life inside the browser tab. In the bottom corner, typed in bright yellow text, read: Eaglercraft 1.20 NEW - Protocol Override "No way," Leo breathed.

Vanilla 1.20’s decorated pots have 4 sides, each with a distinct sherd NBT. Storing this per-block in JavaScript objects causes GC thrashing. Use a single Uint32Array bitmask per chunk section, where each pot’s sherd combination is encoded as a 12-bit integer, reducing memory by 76%.

Just as the words left his mouth, a shadow fell over Leo's desk. "Would I, Leo?" Mr. Henderson's voice was dry as bone. Both boys froze. Sam instinctively tried to hit to close the tab, but his fingers fumbled.