Look up "Von Neumann Unbiasing". If you want to get even closer to perfection. TLDR; Roll a SINGLE die twice in a row. If 1st > 2nd, write 1, if 1st < 2nd write 0, if 1st = 2nd, roll again. More than double the roll time, but closer to perfection if you really want it, without needing casino grad...

lol, I just published this, too: https://seedkeys.xyz/how-to-generate-a-seed-phrase/ You can just do similar things with the same trigger 😅