There is a module named Superitem in the new project

An extensible custom item minecraft plugin

• written in Kotlin(Support Java)
• every item is a class file(runtime load)
• can write custom item feature
• every item has Automatically generated detailed configuration(from name to potion effect)
• support kotlin DSL and kotlin Script(alse Superitem.kts) (see wiki for example)

Save it as hello.superitem.kts in plugins/Superitem/items to use

require(ItemInfo(Material.NAME_TAG,
    "&cHello SuperItem", 
    listOf("&aWelcome to use SuperItem",
        "&a欢迎使用Superitem",
        "&c This Item doesn't have other effect")))

see Wiki

see README.zh.md

• LibraryManager (shadowed) For runtime dependencies management
• PowerNBT (shadowed) For NBT support

you should leave link to this and keep the author name in command help
feel free to fork and pull requests