One of the biggest headaches with custom items is the resource pack. Normally, you upload the pack to a CDN (like Dropbox or MediaFire), but a portable setup cannot rely on an internet connection or external hosting.
: The portable version of ItemsAdder shines with its simplicity and ease of use. It's designed to be dropped into a server's plugins directory and used immediately, with minimal configuration required. This makes it perfect for server owners who want to test out custom items without the hassle of complex setups. itemsadder portable
ItemsAdder requires the server plugin to: One of the biggest headaches with custom items