Add alejandra nix formatter and integrate into NixOS flake

flake.lock

@@ -1,5 +1,28 @@
 {
   "nodes": {
+    "alejandra": {
+      "inputs": {
+        "fenix": "fenix",
+        "flakeCompat": "flakeCompat",
+        "nixpkgs": [
+          "nixpkgs"
+        ]
+      },
+      "locked": {
+        "lastModified": 1744324181,
+        "narHash": "sha256-Oi1n2ncF4/AWeY6X55o2FddIRICokbciqFYK64XorYk=",
+        "owner": "kamadorueda",
+        "repo": "alejandra",
+        "rev": "3e2a85506627062313e131bf8a85315f3387c8e0",
+        "type": "github"
+      },
+      "original": {
+        "owner": "kamadorueda",
+        "ref": "4.0.0",
+        "repo": "alejandra",
+        "type": "github"
+      }
+    },
     "base16": {
       "inputs": {
         "fromYaml": "fromYaml"
@@ -68,6 +91,28 @@
         "type": "github"
       }
     },
+    "fenix": {
+      "inputs": {
+        "nixpkgs": [
+          "alejandra",
+          "nixpkgs"
+        ],
+        "rust-analyzer-src": "rust-analyzer-src"
+      },
+      "locked": {
+        "lastModified": 1730615655,
+        "narHash": "sha256-2HBR3zLn57LXKNRtxBb+O+uDqHM4n0pz51rPayMl4cg=",
+        "owner": "nix-community",
+        "repo": "fenix",
+        "rev": "efeb50e2535b17ffd4a135e6e3e5fd60a525180c",
+        "type": "github"
+      },
+      "original": {
+        "owner": "nix-community",
+        "repo": "fenix",
+        "type": "github"
+      }
+    },
     "firefox-gnome-theme": {
       "flake": false,
       "locked": {
@@ -126,6 +171,22 @@
         "type": "github"
       }
     },
+    "flakeCompat": {
+      "flake": false,
+      "locked": {
+        "lastModified": 1696426674,
+        "narHash": "sha256-kvjfFW7WAETZlt09AgDn1MrtKzP7t90Vf7vypd3OL1U=",
+        "owner": "edolstra",
+        "repo": "flake-compat",
+        "rev": "0f9255e01c2351cc7d116c072cb317785dd33b33",
+        "type": "github"
+      },
+      "original": {
+        "owner": "edolstra",
+        "repo": "flake-compat",
+        "type": "github"
+      }
+    },
     "fromYaml": {
       "flake": false,
       "locked": {
@@ -449,6 +510,7 @@
     },
     "root": {
       "inputs": {
+        "alejandra": "alejandra",
         "grub2-themes": "grub2-themes",
         "home-manager": "home-manager",
         "niri": "niri",
@@ -462,6 +524,23 @@
         "zen-browser": "zen-browser"
       }
     },
+    "rust-analyzer-src": {
+      "flake": false,
+      "locked": {
+        "lastModified": 1730555913,
+        "narHash": "sha256-KNHZUlqsEibg3YtfUyOFQSofP8hp1HKoY+laoesBxRM=",
+        "owner": "rust-lang",
+        "repo": "rust-analyzer",
+        "rev": "f17a5bbfd0969ba2e63a74505a80e55ecb174ed9",
+        "type": "github"
+      },
+      "original": {
+        "owner": "rust-lang",
+        "ref": "nightly",
+        "repo": "rust-analyzer",
+        "type": "github"
+      }
+    },
     "stylix": {
       "inputs": {
         "base16": "base16",

flake.nix

@@ -37,12 +37,17 @@
       inputs.nixpkgs.follows = "nixpkgs";
     };
 
+    alejandra = {
+      url = "github:kamadorueda/alejandra/4.0.0";
+      inputs.nixpkgs.follows = "nixpkgs";
+    };
+
     nix-flatpak.url = "github:gmodena/nix-flatpak";
     
     grub2-themes.url = "github:vinceliuice/grub2-themes";
   };
   
-  outputs = inputs@{ nixpkgs, home-manager, plasma-manager, nixos-hardware, stylix, niri, zen-browser, grub2-themes, nix-flatpak, ... }:
+  outputs = inputs@{ nixpkgs, alejandra, home-manager, plasma-manager, nixos-hardware, stylix, niri, zen-browser, grub2-themes, nix-flatpak, ... }:
   let
     username = "cookiez";
     hostname = "nixos";
@@ -63,6 +68,7 @@
           inherit version;
           inherit system;
           inherit project;
+          inherit alejandra;
           host = hostname;
         };
         modules = [

modules/packages/essentials.nix

@@ -1,4 +1,4 @@
-{config, pkgs, libs, inputs, nix-flatpak, ...}:
+{config, pkgs, libs, inputs, system, alejandra, ...}:
 {
   environment.systemPackages = with pkgs; [
     #Essentials (CLI Only)
@@ -45,5 +45,6 @@
     kdePackages.ksshaskpass
     ntfs3g
     appimage-run
+    alejandra.defaultPackage.${system}
   ];
 }