Resource Replicator

Right-clicking a machine with an item in hand inserts that item as the template to copy, and sneaking while right-clicking with an empty hand clears it. Fluids work the same way with a bucket in hand, and an empty bucket clears the stored fluid. Once a resource is set, supplying the block with FE energy makes it begin outputting the same resource, and its appearance changes in real time to show what it is replicating. The mod is set for client and server, so both the server and every player need it. Files are published for NeoForge only, with builds covering 1.21.1 – 26.2 across six release versions.

The copying behaviour is controlled by a configurable allow and deny list. Entries can match an item ID, a mod ID or a tag, and mod items are placed on the deny list by default. Processing speed and output quantity are set per tier: T2 gives 4 items every 20 ticks, T3 gives 16 every 15 ticks, T4 gives 32 every 10 ticks and T5 gives 64 every 5 ticks. Server owners can also adjust the number of output slots, which default to one buffer slot, enable automatic output into one adjacent container face, and change the energy consumption.

A void option can be enabled to discard items fed in through pipes, and it is disabled by default. Chemical copying is included, and Mekanism compatibility is listed by the author. The author notes that machines producing FE are not added yet. The mod is released under the Creative Commons Attribution 4.0 license and is not open source, though public source code links exist.