diff --git a/flake.lock b/flake.lock
index f707b1c..dc8c408 100644
--- a/flake.lock
+++ b/flake.lock
@@ -1,6 +1,80 @@
 {
   "nodes": {
+    "alejandra": {
+      "inputs": {
+        "fenix": "fenix",
+        "flakeCompat": "flakeCompat",
+        "nixpkgs": "nixpkgs"
+      },
+      "locked": {
+        "lastModified": 1694541876,
+        "narHash": "sha256-lStDIPizbJipd1JpNKX1olBKzyIosyC2U/mVFwJPcZE=",
+        "owner": "kamadorueda",
+        "repo": "alejandra",
+        "rev": "e53c2c6c6c103dc3f848dbd9fbd93ee7c69c109f",
+        "type": "github"
+      },
+      "original": {
+        "owner": "kamadorueda",
+        "repo": "alejandra",
+        "type": "github"
+      }
+    },
+    "fenix": {
+      "inputs": {
+        "nixpkgs": [
+          "alejandra",
+          "nixpkgs"
+        ],
+        "rust-analyzer-src": "rust-analyzer-src"
+      },
+      "locked": {
+        "lastModified": 1668234453,
+        "narHash": "sha256-FmuZThToBvRsqCauYJ3l8HJoGLAY5cMULeYEKIaGrRw=",
+        "owner": "nix-community",
+        "repo": "fenix",
+        "rev": "8f219f6b36e8d0d56afa7f67e6e3df63ef013cdb",
+        "type": "github"
+      },
+      "original": {
+        "owner": "nix-community",
+        "repo": "fenix",
+        "type": "github"
+      }
+    },
+    "flakeCompat": {
+      "flake": false,
+      "locked": {
+        "lastModified": 1650374568,
+        "narHash": "sha256-Z+s0J8/r907g149rllvwhb4pKi8Wam5ij0st8PwAh+E=",
+        "owner": "edolstra",
+        "repo": "flake-compat",
+        "rev": "b4a34015c698c7793d592d66adbab377907a2be8",
+        "type": "github"
+      },
+      "original": {
+        "owner": "edolstra",
+        "repo": "flake-compat",
+        "type": "github"
+      }
+    },
     "nixpkgs": {
+      "locked": {
+        "lastModified": 1668226844,
+        "narHash": "sha256-G/S4FBWDAqHeBS/hfXwUCJbnaKnrQFoeeKwzvZEOgxM=",
+        "owner": "nixos",
+        "repo": "nixpkgs",
+        "rev": "dd4767bf613bf9553eee6ff37c0996b9c876e7d8",
+        "type": "github"
+      },
+      "original": {
+        "owner": "nixos",
+        "ref": "nixos-unstable-small",
+        "repo": "nixpkgs",
+        "type": "github"
+      }
+    },
+    "nixpkgs_2": {
       "locked": {
         "lastModified": 1706371002,
         "narHash": "sha256-dwuorKimqSYgyu8Cw6ncKhyQjUDOyuXoxDTVmAXq88s=",
@@ -18,7 +92,25 @@
     },
     "root": {
       "inputs": {
-        "nixpkgs": "nixpkgs"
+        "alejandra": "alejandra",
+        "nixpkgs": "nixpkgs_2"
+      }
+    },
+    "rust-analyzer-src": {
+      "flake": false,
+      "locked": {
+        "lastModified": 1668182250,
+        "narHash": "sha256-PYGaOCiFvnJdVz+ZCaKF8geGdffXjJUNcMwaBHv0FT4=",
+        "owner": "rust-lang",
+        "repo": "rust-analyzer",
+        "rev": "45ec315e01dc8dd1146dfeb65f0ef6e5c2efed78",
+        "type": "github"
+      },
+      "original": {
+        "owner": "rust-lang",
+        "ref": "nightly",
+        "repo": "rust-analyzer",
+        "type": "github"
       }
     }
   },
diff --git a/flake.nix b/flake.nix
index 374d89c..7e88b8e 100644
--- a/flake.nix
+++ b/flake.nix
@@ -1,10 +1,15 @@
 {
   description = "A script to patch the MonoLisa font with Nerd Fonts glyphs.";
-  inputs.nixpkgs.url = "github:nixos/nixpkgs/nixos-unstable";
+
+  inputs = {
+    nixpkgs.url = "github:nixos/nixpkgs/nixos-unstable";
+    alejandra.url = "github:kamadorueda/alejandra";
+  };
 
   outputs = inputs @ {
     self,
     nixpkgs,
+    alejandra,
   }: let
     inherit (nixpkgs.lib) genAttrs;
     forAllSystems = f:
@@ -54,5 +59,7 @@
           };
         }
     );
+
+    formatter.x86_64-linux = alejandra.packages.x86_64-linux.default;
   };
 }