Oraxen is a minecraft plugin that allows to easily use Minecraft 1.14 features in order to create new items with custom textures. It handles the resourcepack generation, upload (using Polymath) and has an extensible API.

The official oraxen documentation (made with gitbook)

A unified library to detect if a player can place or destroy a block

An Xray plugin for Spigot compatible with Oraxen (no resourcepack required)

A python server to host oraxen resource packs

This bungeecord plugin optimizes the sending of minecraft resource packs on servers using Polymath technology.