some notes that should be shared with racers

If you pull the Master Sword Pedestal, you'll get an invisible follower.  You MUST leave the Master Sword area and trigger the text box or you'll keep the invisible follower, and it will prevent other followers from following you (which is bad).
Free standing items (such as heart pieces, Book of Mudora, etc) are not randomized.  This includes items on torches.
Most NPCs items are randomized, and all items in chests are randomized.
Waterfall and Pyramid fairies are vanilla (no chests), so is the Waterfall of Wishing (no upgrade shop, you gotta throw rupees instead).
Quickswap isn't available.
No guarantees are made to the beat-ability of the game.  This seed was raced before (5 years ago), but your results may vary.
Pendants and crystals are not shuffled.
Shovel/Flute and Mushroom/Powder cannot be toggled, and instead will replace each other.  The generator takes this into account to prevent softlocks.