-import qualified Data.Configurator as DC
-import qualified Data.Configurator.Types as DCT
-import Data.Data (Data)
-import Data.Maybe (fromMaybe)
-import Data.Monoid (Monoid(..))
-import Data.Typeable (Typeable)
+import qualified Data.Configurator as DC (
+ Worth (Optional),
+ load,
+ lookup )
+
+import Data.Data ( Data )
+import Data.Maybe ( fromMaybe )
+import Data.Monoid ( Monoid(..) )
+import Data.Typeable ( Typeable )
+import Paths_halcyon ( getSysconfDir )
+import System.Directory ( getHomeDirectory )
+import System.FilePath ( (</>) )
+import System.IO ( hPutStrLn, stderr )
+import System.IO.Error ( catchIOError )
+
+import Usernames ( Usernames(..) )
+