✨ add nushell and vscodium configurations

modules/home/apps/codium/default.nix

@@ -0,0 +1,74 @@
+{
+  lib,
+  pkgs,
+  config,
+  namespace,
+  ...
+}: let
+  inherit (lib) mkEnableOption mkIf;
+  cfg = config.${namespace}.apps.vscodium;
+in {
+  options.${namespace}.apps.vscodium = {
+    enable = mkEnableOption "vscodium";
+  };
+
+  config = mkIf cfg.enable {
+    home.packages = with pkgs; [
+      alejandra
+    ];
+
+    programs.vscode = {
+      enable = true;
+      package = pkgs.vscodium;
+
+      enableUpdateCheck = false;
+      enableExtensionUpdateCheck = false;
+      mutableExtensionsDir = false;
+
+      extensions = with pkgs; [
+        ### Theming
+        vscode-extensions.pkief.material-icon-theme
+        vscode-extensions.catppuccin.catppuccin-vsc
+
+        ### General
+        vscode-extensions.usernamehw.errorlens
+        vscode-extensions.leonardssh.vscord
+        vscode-extensions.davidlday.languagetool-linter
+        vscode-extensions.christian-kohler.path-intellisense
+        vscode-extensions.wakatime.vscode-wakatime
+
+        ### Language specific
+        # Nushell
+        vscode-extensions.thenuprojectcontributors.vscode-nushell-lang
+
+        # Nix
+        vscode-extensions.kamadorueda.alejandra
+        vscode-extensions.jnoortheen.nix-ide
+
+        # Env
+        vscode-extensions.irongeek.vscode-env
+
+        # Deno (JavaScript)
+        vscode-extensions.denoland.vscode-deno
+      ];
+
+      userSettings = {
+        "files.autoSave" = "on";
+        "workbench.colorTheme" = "Catppuccin Macchiato";
+
+        "[nix]" = {
+          "editor.tabSize" = 2;
+          "formatterPath" = "alejandra";
+
+          "enableLanguageServer" = true;
+          "serverPath" = "nixd";
+          "serverSettings" = {
+            "nixd" = {
+              "formatting.command" = ["alejandra"];
+            };
+          };
+        };
+      };
+    };
+  };
+}