GatSorter

Since rejected items dispense out of the sorting hopper, players may want to build an extra hopper and chest under the sorter to collect the refuse.

The wall itself can bend around corners so long as it never circles back unto itself.

If the designated chest is full, or there isn't a matching chest at all, the extra items won't be lost, but instead will dispense out of the sorter for players to collect.

As a bonus content, the datapack includes a recipe for the Invisible Item Frame.

GatSorter Datapack for Minecraft

Appearance options as set in the _config.mcfunction file.

Players can use barrels, chests, decorative pots, or trapped chests to build the container wall, which can be hundreds of chests long.