Seems the zellij package makes the standard config file by default now, let's just fill that with the option

home-manager/shared/shell/zellij/default.nix

@@ -90,6 +90,39 @@ in {
     # TODO find specific settings for vscode to avoid
     enable = true;
     enableZshIntegration = true;
+    settings = {
+      session_serialization = true;
+      theme = "catppuccin-macchiato";
+
+      themes = {
+        catppuccin-mocha = {
+          bg = "#585b70";
+          fg = "#cdd6f4";
+          red = "#f38ba8";
+          green = "#a6e3a1";
+          blue = "#89b4fa";
+          yellow = "#f9e2af";
+          magenta = "#f5c2e7";
+          orange = "#fab387";
+          cyan = "#89dceb";
+          black = "#181825";
+          white = "#cdd6f4";
+        };
+        catppuccin-macchiato = {
+          bg = "#5b6078";
+          fg = "#cad3f5";
+          red = "#ed8796";
+          green = "#a6da95";
+          blue = "#8aadf4";
+          yellow = "#eed49f";
+          magenta = "#f5bde6";
+          orange = "#f5a97f";
+          cyan = "#91d7e3";
+          black = "#1e2030";
+          white = "#cad3f5";
+        };
+      };
+    };
   };
 
   home.file = {
@@ -98,10 +131,10 @@ in {
       target = ".config/zellij/layouts/default.kdl";
     };
   };
-  home.file = {
+  #home.file = {
-    "config" = {
+  #  "config" = {
-      source = ./zellij.kdl;
+  #    source = ./zellij.kdl;
-      target = ".config/zellij/config.kdl";
+  #    target = ".config/zellij/config.kdl";
-    };
+  #  };
-  };
+  #};
 }