Redstone Chunk Loader

A lodestone set on a redstone lamp becomes a chunk loader. While the lamp receives redstone power, the block keeps a 3x3 chunk area around it loaded. The loader emits particles while it is active, so players can see which ones are running. A second variant, the Allay Loader, is made by giving an allay a lodestone, which turns the allay into a chunk loader that can follow the player.

The mod also covers setups where a chunk loader must move around, such as machines built with flying-machine mods or contraptions from other add-ons. Server owners configure it through a settings file and an operator menu that is limited to creative players with operator rights. The menu changes the loaded range between 1x1, 3x3 and 5x5 chunks and caps how many chunk loaders may run at once, with 10 as an example limit.

Redstone Chunk Loader is a server-side mod: only the server needs it, and players can join without installing anything. It is released under the MIT License and is not open source. Files exist for Fabric, Forge, NeoForge and Quilt, targeting 1.20 and 1.21, and a data pack version works on 1.20. The author reports tests on servers, with the note that unusual setups were not covered.