This is great! We have two nephews who’s father is Peruvian. One has fought most of his life to get people to call him Nancho which is his nickname. The English version of his name is Herman. All his gringo acquaintances called him Nacho like the chips and cheese. His brother - English version is Robert. He was never called Beto but I do know it’s a nickname for Robert.
What do you call cheese that isn’t yours?
Nacho cheese!
;^)