diff --git a/README.md b/README.md
index 6c0965a..d336f6b 100644
--- a/README.md
+++ b/README.md
@@ -36,6 +36,7 @@ git add . && git commit -m rename
 ## Tips
 
 - Run `nix flake update` to update all flake inputs. nixpkgs is pinned to a specific a rev in `flake.nix`, which you can advance to the latest rev reported in [status.nixos.org](https://status.nixos.org).
+- Run `nix run .#format` to autoformat the project.
 
 ## Alternatives
 
diff --git a/bin/format b/bin/format
deleted file mode 100755
index d9b7096..0000000
--- a/bin/format
+++ /dev/null
@@ -1,6 +0,0 @@
-#!/usr/bin/env nix-shell 
-#! nix-shell ../shell.nix -i bash
-set -xe
-find src -name \*.hs | xargs fourmolu -m inplace -o -XImportQualifiedPost -o -XTypeApplications
-nixpkgs-fmt *.nix
-cabal-fmt -i *.cabal
\ No newline at end of file
diff --git a/flake.lock b/flake.lock
index 5087662..c3acea3 100644
--- a/flake.lock
+++ b/flake.lock
@@ -31,6 +31,43 @@
         "type": "github"
       }
     },
+    "flake-utils_2": {
+      "locked": {
+        "lastModified": 1644229661,
+        "narHash": "sha256-1YdnJAsNy69bpcjuoKdOYQX0YxZBiCYZo4Twxerqv7k=",
+        "owner": "numtide",
+        "repo": "flake-utils",
+        "rev": "3cecb5b042f7f209c56ffd8371b2711a290ec797",
+        "type": "github"
+      },
+      "original": {
+        "owner": "numtide",
+        "repo": "flake-utils",
+        "type": "github"
+      }
+    },
+    "lint-utils": {
+      "inputs": {
+        "flake-utils": "flake-utils_2",
+        "nixpkgs": [
+          "nixpkgs"
+        ]
+      },
+      "locked": {
+        "lastModified": 1648231648,
+        "narHash": "sha256-1X5rhcb53AFiMPiln5l/694L+J1PRudFKkemQtJSOL4=",
+        "ref": "lc/fourmolu",
+        "rev": "d4418e62a1b4ca84915ca35af22beb303569e649",
+        "revCount": 15,
+        "type": "git",
+        "url": "https://gitlab.homotopic.tech/nix/lint-utils.git"
+      },
+      "original": {
+        "ref": "lc/fourmolu",
+        "type": "git",
+        "url": "https://gitlab.homotopic.tech/nix/lint-utils.git"
+      }
+    },
     "nixpkgs": {
       "locked": {
         "lastModified": 1647893727,
@@ -51,6 +88,7 @@
       "inputs": {
         "flake-compat": "flake-compat",
         "flake-utils": "flake-utils",
+        "lint-utils": "lint-utils",
         "nixpkgs": "nixpkgs"
       }
     }
diff --git a/flake.nix b/flake.nix
index 214a4c1..1dc2c5f 100644
--- a/flake.nix
+++ b/flake.nix
@@ -8,6 +8,12 @@
     flake-compat.url = "github:edolstra/flake-compat";
     flake-compat.flake = false;
     flake-compat.inputs.nixpkgs.follows = "nixpkgs";
+    lint-utils = {
+      type = "git";
+      url = "https://gitlab.homotopic.tech/nix/lint-utils.git";
+      ref = "lc/fourmolu";
+      inputs.nixpkgs.follows = "nixpkgs";
+    }; 
   };
   outputs = inputs@{ self, nixpkgs, flake-utils, ... }:
     flake-utils.lib.eachDefaultSystem
@@ -50,6 +56,10 @@
           # Used by `nix build` & `nix run` (prod exe)
           defaultPackage = project false;
 
+          apps = {
+            format = inputs.lint-utils.apps.${system}.fourmoluStandard8107;
+          };
+
           # Used by `nix develop` (dev shell)
           devShell = project true;
         }) // {