Since the default system is disabled, the script uses Humanoid:EquipTool(tool) to manually handle item selection.

While specific versions vary, common functionalities in these scripts often include:

Scripts often use StarterGui:SetCoreGuiEnabled(Enum.CoreGuiType.Backpack, false) to hide the standard Roblox inventory.

Instantly provides tools, food, or equipment without needing to purchase them from the in-game shop.

Custom layouts that may allow for more slots than the standard backpack. How They Are Implemented (Scripting Logic)

How to Make a Custom Backpack GUI | Roblox Scripting Tutorial