nixpkgs-notifier: added as a flake input

flake.nix

@@ -9,9 +9,18 @@
       url = "github:nix-community/home-manager/release-26.05";
       inputs.nixpkgs.follows = "nixpkgs";
     };
+    flake-utils = {
+      url = "github:numtide/flake-utils";
+    };
     notewrapper = {
       url = "github:tomasriveral/notewrapper";
       inputs.nixpkgs.follows = "nixpkgs-unstable";
+      inputs.flake-utils.follows = "flake-utils";
+    };
+    nixpkgs-notifier = {
+      url = "github:tomasriveral/nixpkgs-notifier";
+      inputs.flake-utils.follows = "flake-utils";
+      inputs.nixpkgs.follows = "nixpkgs-unstable";
     }; 
     caelestia-shell = {
       # based on quickshell. See https://github.com/caelestia-dots/shell

modules/utilities/development.nix

@@ -1,4 +1,4 @@
-_: {
+{inputs, ...}: {
   flake.nixosModules.development = {
     pkgs,
     pkgs-unstable,
@@ -31,6 +31,7 @@ _: {
       ltex-ls-plus
       pylint
       black
+      inputs.nixpkgs-notifier.packages.${pkgs.system}.default
     ];
   };
 }