Template composition / component based templating

[fkromer]

I'd like to implement a copier template enabling project scaffolding using a component based approach. Similar to e.g. how create-vue and vue cli plugins are used. This allows users to skip optional features. Similarly choices allow to choose between alternative feature options (e.g. Python dependency management -> pipenv / pdm / poetry).

I'm pretty sure I can implement a template using a component based approach. However right now it's not clear to me yet how to structure the overall project. When I look into applying multiple templates to the same subproject it could imagine it would be reasonable to create a GitHub organization and setup several GitHub repos in there... every GitHub repo implementing the generation of component specific files.

Has someone recommendations for a template composition / component based templating approach?