This is a backpack plugin you can craft 6 types of them
or just use command to get them

command -> /modernbackpack give <Player> <1-6>
You can change the crafting items in config
so first backpack has 9 slots next 18 until 54 slots

All data is saved in sqlite data base
To open backpack click left or right mouse button
You can create unlimited amount of them

permission: "modernbackpack.give" for the command

If you have any questions or errors contact me using dc:
https://discord.gg/XmCfGFBjCr​