Migrate penguin to use nix

modules/home/neovim/default.nix

@@ -344,7 +344,7 @@ in
         };
 
         project-nvim = {
-          enable = true;
+          enable = false;
           enableTelescope = true;
         };
         web-devicons.enable = true;

modules/home/nushell/default.nix

@@ -15,6 +15,7 @@ in
   };
 
   config = mkIf cfg.enable {
+    home.shell.enableNushellIntegration = true;
     programs = {
       nushell = {
         enable = true;
@@ -22,7 +23,15 @@ in
           $env.config.edit_mode = "vi"
           $env.config.buffer_editor = "nvim"
           $env.config.show_banner = false
-          '';
+        '';
+        shellAliases = {
+          lg = "lazygit";
+          js = "jj status";
+          jd = "jj diff";
+          jn = "jj new";
+          jf = "jj git fetch";
+          jp = "jj git push";
+        };
       };
       nix-your-shell = {
         enable = true;