Endrise

The mod starts where the End itself starts and changes it over time. Enderium ore runs through end stone across the outer islands, and it can be mined with a diamond pick, with Silk Touch and Fortune both respected, then smelted or blasted into enderium ingots. Enderium forms a tool tier of its own, and an infusion tier sits above it.

Gear can be upgraded at a smithing table with an Enderium Upgrade Smithing Template, made from seven end stone, popped chorus fruit and an enderium ingot. Diamond and netherite tools can be smithed into it, enchantments and durability carry over, and armor keeps counting through trims. Enderium ingots also work as a trim material. A Soulbound book, crafted from three enderium ingots, two ender pearls and a book, lets gear survive death. Soulbound gear skips the drop, returns eight seconds later to the inventory slots it left, and the ender sound confirms the return. The enchantment survives server restarts and applies to void deaths too.

Endrise is open source under the MIT License. It needs only NeoForge, and it is published for NeoForge in two release versions, 1.21.1 and 26.1.2. Both the server and every player need the mod, so the environment is client and server.