old_contents: from .base import *  # noqa
  
  STAFF_HOME_CARDS = [c for c in STAFF_HOME_CARDS
                      if c['url'] not in ['server:battery', 'server:wifi']]
  
  HOME_CARDS = STAFF_HOME_CARDS + [
      {
          'id': 'blog',
      },
      {
          'id': 'mediacenter',
      },
      {
          'id': 'library',
      },
      {
          'id': 'wikipedia.old',
      },
      {
          'id': 'khanacademy',
      },
      {
          'id': 'vikidia.old',
      },
      {
          'id': 'gutenberg.old',
      },
  ]
  
new_contents: from .base import *  # noqa
  
  STAFF_HOME_CARDS = [c for c in STAFF_HOME_CARDS
                      if c['url'] not in ['server:battery']]
  
  HOME_CARDS = STAFF_HOME_CARDS + [
      {
          'id': 'blog',
      },
      {
          'id': 'mediacenter',
      },
      {
          'id': 'library',
      },
      {
          'id': 'wikipedia.old',
      },
      {
          'id': 'khanacademy',
      },
      {
          'id': 'vikidia.old',
      },
      {
          'id': 'gutenberg.old',
      },
  ]
  
subject: Update idb.py