Jeffy Backpacks [BTW Addon]

Backpacks in this addon are meant as an upgrade over ordinary bundles, and each of the three storage bags is placed at a different stage of progression. Worn bags can be dyed like leather armor, and the backpack contents are opened through a new item GUI interaction system rather than a separate block screen. Lunchboxes hold several stacks of food, so a player can carry a meal supply on long trips.

The addon is built for long adventures and large caving trips, where a player needs more room than the default inventory gives. Filters control which items may enter a backpack, and the mod applies a penalty based on the amount of items a player carries, with too many items causing debuffs. Worn items are placed into the bag inventory automatically, and the cursor is left empty after the transfer.

The addon requires Better Than Wolves: CE and Jeffy Lib [BTW Addon]. It is released under the MIT License and is open source. Files exist for Legacy Fabric 1.6.4, with version 0.3.1 as the latest file, published on 2025-12-19. A server running it needs every connecting player to have it too.