Not Just Another Compat Mod (NJARM+)

The addon requires the Njarm mod and works alongside it. It adds recipes that make the Ender Shard harder to obtain: endstone ore spawns in the End and can be hard to tell apart from ordinary endstone, and the Ender Shard recipe is more difficult than the one in the base mod.

Other additions include shears crafted from sulfur ingots and mica, sulfur mud and sulfur water that smelt into an ingot, a cowboy hat crafted from leather and gold, and decorative blocks made from mulch found in swamps, from silk and from a new stone type. The author describes the mod as still under development. Files are published for Forge 1.12.2 only, and the environment is client and server, so the server and every player need it. The code is released under the MIT License, but the mod is not open source.