1 files changed, 10 insertions, 4 deletions
diff --git a/website/sandbox/learnpianochords/src/server/Main.hs b/website/sandbox/learnpianochords/src/server/Main.hs
index 36044d2585eb..a163c66cda07 100644
--- a/website/sandbox/learnpianochords/src/server/Main.hs
+++ b/website/sandbox/learnpianochords/src/server/Main.hs
@@ -2,7 +2,7 @@
 module Main where
 --------------------------------------------------------------------------------
 import RIO
-import Prelude (putStrLn)
+import Prelude (putStr, putStrLn)
 
 import qualified Types as T
 import qualified System.Envy as Envy
@@ -18,8 +18,8 @@ getAppContext = do
     Left err -> pure $ Left err
     Right T.Env{..} -> pure $ Right T.Context
       { contextGoogleClientID = envGoogleClientID
-      , contextClientPort = 8000
-      , contextServerPort = 3000
+      , contextServerPort = envServerPort
+      , contextClientPort = envClientPort
       }
 
 main :: IO ()
@@ -27,4 +27,10 @@ main = do
   mContext <- getAppContext
   case mContext of
     Left err -> putStrLn err
-    Right ctx -> runRIO ctx App.run
+    Right ctx -> do
+      result <- runRIO ctx App.run
+      case result of
+        Left err -> do
+          putStr "Something went wrong when executing the application: "
+          putStrLn $ show err
+        Right _ -> putStrLn "The application successfully executed."