Hi!

In JEI we can see that charms can be made unbreakable with the infusion enchantment, at level 100. But when I want to put "infusion" with a command ("/enchant Remingusu apotheosis:infusion") it tells me that the enchantment cannot be put on charms. Is this normal?

Infusion is not an enchantment that can be applied as it doesn't do anything. If you wanted to make it via nbt editing you would apply the vanilla Unbreakable tag