Feature request

Feature description
It would be nice (and useful) if you could make the backpack craftable. Maybe giving the ability to create custom recipes for it. An example of a crafting recipe would be to use a chest in the center of the workbench, surrounded by 8 of leather.

How the feature is useful
I find that this feature could come in handy a little bit for everyone since right now I find it a bit unnecessary that there is no way to quickly and easily get the Backpack. Yes, there is an option in the config that allows you to get it when you enter the Server, this however could generate problems for some people. So, since there is currently still no command to be able to give yourself the backpack, why not leave the choice of getting it up to the user by giving them a way to craft it! An additional sub-function that could be implemented is, for example, the ability to manage crafting with a permission. So as to give more options to the Staff of a hypothetical server regarding who to allow to craft the Backpack