How to develop a custom Amazon Sumerian Host avatar?

# How to develop a custom Amazon Sumerian Host avatar?

I want to develop a custom **Amazon Sumerian Host avatar**, like Luke.

* Is there a service that can help me to do that, perhaps **ReadyPlayer.me** or **Wolf3D**?
* How do I do that from scratch using **Blender**, **Reallusion Character Creator**, **Unreal Engine**, or any other Creative Tools?
* Are there any documents for the Amazon Sumerian Host avatar 3D model requirements and specifications about **bones**, **rigging**, skinning, etc?

The issue names no file, test, or entry point. Start by reviewing the repository's existing Host and avatar material, then clarify which creation workflow and model specifications should be supported across Blender, Reallusion Character Creator, Unreal Engine, or external avatar services. Done would be a maintainer-confirmed guide covering the supported process and requirements.

Written by the indexing model from the issue text.