Pre-requisites
How to prepare remote domains before calling the sync action.
Acquia
How to add Acquia accounts to DRD and keep your DRD inventory in sync with them.
Pantheon
How to add Pantheon accounts to DRD and keep your DRD inventory in sync with them.
PlatformSH
How to add PlatformSH accounts to DRD and keep your DRD inventory in sync with them.