diff --git a/default.nix b/default.nix
new file mode 100644
index 0000000..00b6580
--- /dev/null
+++ b/default.nix
@@ -0,0 +1,19 @@
+(
+  import
+  (
+    let
+      lock = builtins.fromJSON (builtins.readFile ./flake.lock);
+      nodeName = lock.nodes.root.inputs.flake-compat;
+    in
+      fetchTarball {
+        url =
+          lock.nodes.${nodeName}.locked.url
+          or "https://github.com/edolstra/flake-compat/archive/${
+            lock.nodes.${nodeName}.locked.rev
+          }.tar.gz";
+        sha256 = lock.nodes.${nodeName}.locked.narHash;
+      }
+  )
+  {src = ./.;}
+)
+.defaultNix
diff --git a/flake.nix b/flake.nix
index 3c7a05c..3407da6 100644
--- a/flake.nix
+++ b/flake.nix
@@ -1,9 +1,14 @@
 {
-  description = "Description for the project";
+  description = "A personal package overlay";
 
   inputs = {
     nixpkgs.url = "github:NixOS/nixpkgs/nixos-unstable";
     flake-parts.url = "github:hercules-ci/flake-parts";
+
+    flake-compat = {
+      url = "github:edolstra/flake-compat";
+      flake = false;
+    };
   };
 
   outputs = inputs @ {flake-parts, ...}:
@@ -11,8 +16,8 @@
       systems = ["x86_64-linux" "aarch64-linux"];
       imports = [./pkgs];
 
-      perSystem = _: {};
-
-      flake = {};
+      perSystem = {pkgs, ...}: {
+        formatter = pkgs.alejandra;
+      };
     };
 }