Sounds like a giant mycelium metropolis, eh? First off, pick one hub block and branch out like a tree—keep your core tight, walls symmetrical, and every new spore block a copy of the last. Use farm plots in concentric rings so your crops feed the whole thing without over‑spreading. Keep a dedicated farm lane that’s a straight line of redstone to avoid zig‑zag chaos. And remember, walls always face the same direction; you don’t want a back‑facing barrier turning your city into a glitch. Build in stages, test each ring, then expand. If you stay methodical, the mushroom city will be more an elegant puzzle than a chaotic spore‑storm.