There's one thing I'd like to say. I know that hard-boiled eggs can be kept for an extended period of time, and I know that the Egg Farmers of Canada have hard-boiled eggs in refrigeration. I buy them at different times. There's a dozen in a package, and they'll have a best before date, and for a month or month and a half they'll stay good in the fridge.
In Africa, they don't have the same refrigeration. Is there a way to keep eggs for an extended period of time in that type of heat and weather?