carpet-lir-addition

Each rule sits on top of Fabric Carpet and stays disabled until a server operator turns it on. Once enabled, the rule takes effect in the current session, so a world can run with only the mechanics it wants. Some rules deliberately change survival balance, so operators should choose them with care. Lava placed against a bone block with a normal amethyst block beside it produces calcite, and placing lava again triggers the update after the rule is switched on.

The add-on is published for Fabric across 43 release versions, 1.14.4 – 26.2. Each build targets one Minecraft version, and the Beta 2 file for the exact version should be selected. Older builds include fewer features, because some vanilla blocks and items they would need do not exist yet. Leaves recipes follow vanilla availability, and mangrove, cherry and pale oak variants arrive with their respective versions. Unsupported rules are omitted, so no nonfunctional options are registered. Recipes stay visible in recipe viewers even with the rule disabled, while the server verifies every result.

The mod runs on the server only, so players join a modded server without installing anything. Singleplayer works through the integrated server. Fabric Loader, Fabric API and Carpet must be installed with a matching version, and the correct JAR goes in the server's mods folder. Clients may need to reconnect to refresh the recipe book after a rule change. Released under the MIT License, the project is open source.