old_contents: from .service import SimpleDatabaseService
  
  __meta__ = {
      "name": "Simple Database",
      "class": SimpleDatabaseService,
      "deps": ["messaging", "appmanager"],
      "config": []
  }
  
new_contents: from .service import SimpleDatabaseService
  
  __meta__ = {
      "name": "Simple Database",
      "class": SimpleDatabaseService,
      "deps": ["messaging", "appmanager"],
      "config": [
          {
              "name": "core",
              "loaders": [
                  {"type": "env"},
                  {"type": "sysvarfile"}
              ]
          }
      ]
  }
  
subject: Add sysvarfile and env config loaders to simpledb.