Template Inheritance/Module Priority

Questions
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1

Silverstripe Version:
4.x

Question:
I’m trying to build a module that adds functionality to Elemental. But because of some the options it needs to override the default templates. I realize these can be added to the theme itself but I’d like it working out of the box before a theme is added. The template inheritance documentation doesn’t seem to help in this case as the example is for the framework, My _config.yml looks like this, but this obviously wrong

---
Name: foundational
Before:
  - 'dnadesign/silverstripe-elemental'
  - 'dnadesign/silverstripe-elemental-list'
---
SilverStripe\Core\Manifest\ModuleManifest:
  module_priority:
    - 'thezenmonkey/foundational'
    - 'dnadesign/silverstripe-elemental'
    - 'dnadesign/silverstripe-elemental-list'

My template are sitting in namespace/my_module/templates/DNADesign/Elemental/Layout and namespace/my_module/templates/DNADesign/Elemental/Models which works in the Theme directory structure.