I hope to be able to add more upgrades to the backpack, such as: stonecutter upgrade, grindstone upgrade, anvil upgrade, and so on.

Currently, there is only one "Crafting" upgrade available for synthesis. When I synthesize some other blocks, I still need to carry other work blocks with me to achieve this. If the backpack allows these to be built-in, I believe it will be much more convenient.

Additionally, if you are concerned that the "Anvil Upgrade" might disrupt game balance, you could set this upgrade to require periodic replenishment of anvils, iron ingots, or iron nuggets. This way, using the anvil would still consume iron but would no longer require carrying an anvil around.

My statements were assisted by machine translation, so some terms might not perfectly align with those in Minecraft, but the meaning should still be understandable. Please kindly bear with any discrepancies. If there are any unclear points, please feel free to ask me for clarification.

More upgrades are planned, but I'm focusing on fixing all bug reportes asap first