What is extended-vrm-specs?

This repository is a collection of specifications and design notes for something called Extended VRM, also referred to as VRMXT. VRM is a file format used for 3D avatar models, commonly used in virtual reality apps and virtual streaming tools. This project does not contain a working application itself. Instead, it is documentation defining how an extended, optional version of that file format should behave so that different programs can support it consistently. The specs are meant to be used by several separate implementation projects, including add-ons for Blender, a fork of a project called UniVRM for the Unity game engine, a plugin for a virtual avatar platform called Warudo, and planned support for other tools like Godot, Three.js, and VRoid Hub's browser tools. The repository links out to each of these related projects rather than containing their code directly. The bulk of the README is organized as a set of tables linking to individual markdown documents covering architecture decisions, draft specifications for named extensions, implementation status for each target platform, and reference material comparing this format to existing standards. Most entries are marked as draft status, meaning the design is still being worked out and is not finalized. A few are marked accepted or proposed. Because this is a specifications and planning repository rather than software, there is nothing to install or run from this repository on its own. Anyone interested would instead read the linked documents to understand the proposed file format extensions, or go to one of the linked implementation repositories to use actual code. The README does not state a license for this repository.