i've read conflicting things about baking ones own Matzah. So apparently it can only be baked in a "professional oven that can be heated to over 600 degrees," which doesn't make sense to me since before Ashkenazim started mass production of selling Matzoth, people had to bake it for themselves in their personal ovens. Also i read that one has to use "shmurah matzah" that was guarded from the field it was ripened, and i went to 3 different Jewish markets and bakeries to attempt to buy "shmurah flower" and of course they looked at me like i was insane. Does one need to use Shmurah matzah as defined is this strictest sense? Or can one use normal flour?
So when one wants to bake their own Matzah, what are the halakhoth? Are there differences of opinion between Sephardim and Ashkenazim? i grew up eating soft matzah and want to bake some for myself, but since my family wasn't very religious growing up i don't know if they followed any kind of halachah so i wanted to ask first.