no fucking clue what I changed but good luck (^_^)*

homes/modules/fish.nix

@@ -1,19 +1,30 @@
 {
   config,
+  lib,
   pkgs,
   ...
 }: {
-  programs.fish = {
-    enable = true;
-    interactiveShellInit = ''
-      #set -g fish_greeting "Welcome weary traveler to my shop"
-      cat ~/banner
-    '';
-    plugins = [
-      {
-        name = "grc";
-        src = pkgs.fishPlugins.grc.src;
-      }
-    ];
+  options = {
+    morphBashToFish = lib.mkEnableOption "morphBashToFish";
+  };
+
+  config = {
+    programs.fish = {
+      enable = true;
+      interactiveShellInit = ''
+        # add dotnet completions if it exists (ie we're in a virtual environment)
+        if type -q dotnet
+          complete -f -c dotnet -a "(dotnet complete (commandline -cp))"
+        end
+
+        set -g fish_greeting "Welcome weary traveller to my shop"
+      '';
+      plugins = [
+        {
+          name = "grc";
+          src = pkgs.fishPlugins.grc.src;
+        }
+      ];
+    };
   };
 }