chore: nix fmt

default.nix

@@ -1,5 +1,5 @@
-{ pkgs ? import <nixpkgs> { } }:
-let manifest = (pkgs.lib.importTOML ./Cargo.toml).package;
+{pkgs ? import <nixpkgs> {}}: let
+  manifest = (pkgs.lib.importTOML ./Cargo.toml).package;
   packages = with pkgs; [
     pkg-config
     libGLU
@@ -8,7 +8,7 @@ let manifest = (pkgs.lib.importTOML ./Cargo.toml).package;
     wayland
   ];
 in
-pkgs.rustPlatform.buildRustPackage rec {
+  pkgs.rustPlatform.buildRustPackage {
     pname = manifest.name;
     version = manifest.version;
     cargoLock.lockFile = ./Cargo.lock;

flake.nix

@@ -3,12 +3,15 @@
   inputs = {
     nixpkgs.url = "github:nixos/nixpkgs/nixos-unstable";
   };
-  outputs = { self, nixpkgs }:
-    let
+  outputs = {
+    self,
+    nixpkgs,
+  }: let
     supportedSystems = ["x86_64-linux"];
     forAllSystems = nixpkgs.lib.genAttrs supportedSystems;
     pkgsFor = nixpkgs.legacyPackages;
   in {
+    formatter = forAllSystems (system: pkgsFor.${system}.alejandra);
     packages = forAllSystems (system: {
       default = pkgsFor.${system}.callPackage ./default.nix {};
     });
@@ -17,4 +20,3 @@
     });
   };
 }
-

shell.nix

@@ -1,5 +1,8 @@
-{ pkgs ? import <nixpkgs> { }, lib }:
-let packages = with pkgs; [
+{
+  pkgs ? import <nixpkgs> {},
+  lib,
+}: let
+  packages = with pkgs; [
     rust-analyzer
     rustfmt
     clippy
@@ -26,4 +29,3 @@ pkgs.mkShell {
       LD_LIBRARY_PATH = "${lib.makeLibraryPath packages}";
     };
   }
-