silverstripe-webpack/app/_config/base-extensions.yml

---
Name: webapp-base-extensions
---
# Basic extensions
SilverStripe\Admin\LeftAndMain:
  extensions:
    - App\Extensions\LeftAndMainExtension

SilverStripe\SiteConfig\SiteConfig:
  extensions:
    - App\Extensions\SocialExtension
    - App\Extensions\SiteConfigExtension
    - App\Extensions\NotificationsExtension

SilverStripe\CMS\Model\SiteTree:
  extensions:
    - App\Extensions\SiteTreeExtension

Sheadawson\Linkable\Models\EmbeddedObject:
  extensions:
    - App\Extensions\EmbeddedObjectExtension

SilverStripe\Assets:
  extensions:
    - App\Extensions\ImageExtension

Dynamic\FlexSlider\Model\SlideImage:
  extensions:
    - App\Extensions\SlideImageExtension

SilverStripe\Core\Injector\Injector:
  #SilverStripe\UserForms\Model\UserDefinedForm:
  #  class: App\Extensions\UserDefinedForm_HiddenClass
  Sheadawson\Linkable\Forms\EmbeddedObjectField:
    class: App\Extensions\EmbedObjectField
  SilverStripe\Forms\CompositeField:
    class: App\Extensions\CompositeFieldExtension

SilverStripe\UserForms\Form\UserForm:
  extensions:
    - App\Extensions\PlaceholderFormExtension

Page:
  searchable_objects:
    - App\Models\TeamMember
  extensions:
    - DNADesign\Elemental\Extensions\ElementalPageExtension