EnchantingEncore

EnchantingEncore is a server-side enchantment system mod for Fabric that extends the vanilla enchanting mechanic. It allows higher-level enchantments, including treasure enchantments, to be offered through the enchantment table. Because the change is server-side only, players join without installing anything, and clients need no extra files. Fabric API is a required dependency and must be present on the server alongside the mod. Files are published for Fabric, for 1.21.8, 1.21.9, 1.21.10 and 1.21.11, with 1.0.0+1.21.11 as the latest file, released under the MIT License as open source.

The mod changes how bookshelves count toward the enchantment level. Filled chiseled bookshelves and regular bookshelves both contribute, and each one adds an extra level up to level 50. Bookshelves are detected inside a 9x9 cube centred on the table, excluding the central 3x3 column, and bookshelves placed behind other bookshelves still transmit power, which allows more unusual library layouts. Raising the enchantment level cap opens higher-level enchantments to players, treasure enchantments among them, and the curses found at the top levels; server owners who want enchanting to go past vanilla limits are the intended audience.