diff --git a/flake.nix b/flake.nix
index abaf5e9..2a67b07 100644
--- a/flake.nix
+++ b/flake.nix
@@ -1,27 +1,28 @@
 {
-    description = "Sinara assembly and test instructions";
+  description = "Sinara assembly and test instructions";
 
-    inputs.nixpkgs.url = github:NixOS/nixpkgs/nixos-24.05;
-
-    outputs = { self, nixpkgs }:
-
-    let pkgs = import nixpkgs { system = "x86_64-linux"; };
-
-    in {
-    packages.x86_64-linux.default =
-        # Notice the reference to nixpkgs here.
-        with import nixpkgs { system = "x86_64-linux"; };
-        stdenv.mkDerivation {
-          name = "book";
-          src = self;
-          buildInputs = with pkgs; [ pkgs.mdbook ];
-          buildPhase = "mdbook build";
-          installPhase = "mkdir -p $out/book; cp -R book $out/";
-        };
-    devShell.x86_64-linux = pkgs.mkShell {
-            name = "sinara-assembly-dev-shell";
-            buildInputs = with pkgs; [ pkgs.mdbook pkgs.nodejs ];
-        };
+  inputs.nixpkgs.url = "github:NixOS/nixpkgs/nixos-24.05";
 
+  outputs =
+    { self, nixpkgs }:
+    let
+      system = "x86_64-linux";
+      pkgs = import nixpkgs { inherit system; };
+    in
+    {
+      packages.${system}.default = pkgs.stdenv.mkDerivation {
+        name = "book";
+        src = self;
+        buildInputs = [ pkgs.mdbook ];
+        buildPhase = "mdbook build";
+        installPhase = "mkdir -p $out/book; cp -R book $out/";
+      };
+      devShell.${system} = pkgs.mkShell {
+        name = "sinara-assembly-dev-shell";
+        buildInputs = [
+          pkgs.mdbook
+          pkgs.nodejs
+        ];
+      };
     };
 }