Changed
Context
DRD and DRD Agent modules let you connect multiple Drupal sites to a dashboard for monitoring.
Discovery
Encrypt/Keys modules are hard to understand how to configure.
Try Easy Encryption, which stores keys in a directory outside the root.
Better, add keys as environment variables and keep them out of your repository.
Host: server
Configure drush path.
Core: Drupal codebase
Includes multisites.
Domain: Individual site
Project: modules/themes
TODO
Configure encryption keys.
Configure DRD Agent on sites.