flake/apps: add input groups and enhanced flake management

Author: khaneliman

flake/apps.nix

@@ -1,14 +1,88 @@
 _: {
   perSystem =
     { pkgs, lib, ... }:
+    let
+      inputGroups = {
+        core = {
+          description = "Core Nix ecosystem";
+          inputs = [
+            "nixpkgs"
+            "nixpkgs-unstable"
+            "nixpkgs-master"
+            "flake-compat"
+            "flake-parts"
+          ];
+        };
+
+        system = {
+          description = "System management";
+          inputs = [
+            "disko"
+            "home-manager"
+            "lanzaboote"
+            "nix-darwin"
+            "nix-rosetta-builder"
+            "nixos-wsl"
+            "sops-nix"
+          ];
+        };
+
+        apps = {
+          description = "Applications & packages";
+          inputs = [
+            "anyrun-nixos-options"
+            "catppuccin"
+            "firefox-addons"
+            "hypr-socket-watch"
+            "hyprland"
+            "khanelivim"
+            "nh"
+            "nix-flatpak"
+            "nix-index-database"
+            "stylix"
+            "waybar"
+            "yazi-flavors"
+          ];
+        };
+      };
+
+      mkUpdateApp =
+        name:
+        { description, inputs }:
+        {
+          type = "app";
+          program = lib.getExe (
+            pkgs.writeShellApplication {
+              name = "update-${name}";
+              meta = {
+                mainProgram = "update-${name}";
+                description = "Update ${description} inputs";
+              };
+              text = ''
+                set -euo pipefail
+
+                echo "🔄 Updating ${description} inputs..."
+                nix flake update ${lib.concatStringsSep " " inputs}
+
+                echo "✅ ${description} inputs updated successfully!"
+              '';
+            }
+          );
+        };
+
+      groupApps = lib.mapAttrs mkUpdateApp inputGroups;
+    in
     {
-      apps = {
+      apps = groupApps // {
         update-all = {
           type = "app";
           program = lib.getExe (
             pkgs.writeShellApplication {
               name = "update-all";
-              meta.mainProgram = "update-all";
+              meta = {
+                mainProgram = "update-all";
+                description = "Update all flake inputs";
+              };
               text = ''
                 set -euo pipefail