diff --git a/Emne 3/shell.nix b/Emne 3/shell.nix
index e791e67..19bd266 100644
--- a/Emne 3/shell.nix	
+++ b/Emne 3/shell.nix	
@@ -9,5 +9,6 @@ mkShell {
       sdk_9_0
     ])
     csharp-ls
+    avalonia
   ];
 }