subpocket

Items are stored in a subspatial pocket GUI about 160 by 70 pixels in size. Stacks are placed by position and can be dragged with the mouse, and they may overlap one another. Because the field is limited, the stored counts are what keep the storage in check, since an accurate sort is needed to find an item again. The author describes the storage as far beyond ordinary limits in theory, with counts reaching a BigInteger maximum, though a finite world can hold only so much.

The mod adds a creative item in the miscellaneous tab and a subpocket command that opens the storage without a ritual. A subspatial key item breaks blocks at the default speed and drops whatever it breaks, and a config option allows it to break bedrock. Debug commands add a bunch of vanilla items for testing, and the GUI supports mouse wheel and Ctrl or Shift combinations, plus middle-click refills.

Both the server and every player need the mod, since it runs on client and server. It is published for Forge only, 1.12 – 1.19.4 across 30 release versions, and the code is open source under the MIT License.