Exports TSCN and ESCN Files with gltf as ressources. Scense can be Exported with customized Godot Instancer.
Please give some Feedback what type of Features are needed.
Currently there are no plans to create a custom exporter for Animations, Bones because GLTF should solve this requirement.
Use the Package JSON file for Houdini. You need to set the path Manualy in the file.
Old Video of the Proof of Concept: Example Instancing
The Full File Descripton doesn't exist but there is the Blender Exporter that could be used as Reference.