diff --git a/flake.nix b/flake.nix
index 9056fa9..f25bba4 100644
--- a/flake.nix
+++ b/flake.nix
@@ -1,26 +1,31 @@
 {
   description = "Firmware for the Sinara 8451 Thermostat";
 
-  inputs.nixpkgs.url = github:NixOS/nixpkgs/nixos-23.05;
-  inputs.mozilla-overlay = { url = github:mozilla/nixpkgs-mozilla; flake = false; };
+  inputs.nixpkgs.url = "github:NixOS/nixpkgs/nixos-23.05";
+  inputs.mozilla-overlay = {
+    url = "github:mozilla/nixpkgs-mozilla";
+    flake = false;
+  };
 
-  outputs = { self, nixpkgs, mozilla-overlay }:
+  outputs = { self, nixpkgs, mozilla-overlay, }:
     let
-      pkgs = import nixpkgs { system = "x86_64-linux"; overlays = [ (import mozilla-overlay) ]; };
+      pkgs = import nixpkgs {
+        system = "x86_64-linux";
+        overlays = [ (import mozilla-overlay) ];
+      };
       rustManifest = pkgs.fetchurl {
-        url = "https://static.rust-lang.org/dist/2022-12-15/channel-rust-stable.toml";
+        url =
+          "https://static.rust-lang.org/dist/2022-12-15/channel-rust-stable.toml";
         hash = "sha256-S7epLlflwt0d1GZP44u5Xosgf6dRrmr8xxC+Ml2Pq7c=";
       };
 
-      targets = [
-        "thumbv7em-none-eabihf"
-      ];
+      targets = [ "thumbv7em-none-eabihf" ];
       rustChannelOfTargets = _channel: _date: targets:
         (pkgs.lib.rustLib.fromManifestFile rustManifest {
           inherit (pkgs) stdenv lib fetchurl patchelf;
-          }).rust.override {
+        }).rust.override {
           inherit targets;
-          extensions = ["rust-src"];
+          extensions = [ "rust-src" ];
         };
       rust = rustChannelOfTargets "stable" null targets;
       rustPlatform = pkgs.recurseIntoAttrs (pkgs.makeRustPlatform {
@@ -32,10 +37,11 @@
         version = "0.0.0";
 
         src = self;
-        cargoLock = { 
+        cargoLock = {
           lockFile = ./Cargo.lock;
           outputHashes = {
-            "stm32-eth-0.2.0" = "sha256-48RpZgagUqgVeKm7GXdk3Oo0v19ScF9Uby0nTFlve2o=";
+            "stm32-eth-0.2.0" =
+              "sha256-48RpZgagUqgVeKm7GXdk3Oo0v19ScF9Uby0nTFlve2o=";
           };
         };
 
@@ -98,7 +104,8 @@
         src = "${self}/pytec";
 
         nativeBuildInputs = [ pkgs.qt6.wrapQtAppsHook ];
-        propagatedBuildInputs = [ pkgs.qt6.qtbase ] ++ (with pkgs.python3Packages; [ pyqtgraph pyqt6 qasync pglive ]);
+        propagatedBuildInputs = [ pkgs.qt6.qtbase ]
+          ++ (with pkgs.python3Packages; [ pyqtgraph pyqt6 qasync pglive ]);
 
         dontWrapQtApps = true;
         postFixup = ''
@@ -106,27 +113,30 @@
         '';
       };
     in {
-      packages.x86_64-linux = {
-        inherit thermostat thermostat_gui;
-      };
+      packages.x86_64-linux = { inherit thermostat thermostat_gui; };
+
+      formatter.x86_64-linux = nixpkgs.legacyPackages.x86_64-linux.nixfmt;
 
       apps.x86_64-linux.thermostat_gui = {
         type = "app";
         program = "${self.packages.x86_64-linux.thermostat_gui}/bin/tec_qt";
       };
 
-      hydraJobs = {
-        inherit thermostat;
-      };
+      hydraJobs = { inherit thermostat; };
 
       devShell.x86_64-linux = pkgs.mkShell {
         name = "thermostat-dev-shell";
-        buildInputs = with pkgs; [
-          rust openocd dfu-util
-          ] ++ (with python3Packages; [
-            numpy matplotlib pyqtgraph setuptools pyqt6 qasync pglive
+        buildInputs = with pkgs;
+          [ rust openocd dfu-util ] ++ (with python3Packages; [
+            numpy
+            matplotlib
+            pyqtgraph
+            setuptools
+            pyqt6
+            qasync
+            pglive
           ]);
       };
       defaultPackage.x86_64-linux = thermostat;
     };
-}
\ No newline at end of file
+}