diff --git a/conways-game-of-life.cabal b/conways-game-of-life.cabal
index 66ea785..2c24031 100644
--- a/conways-game-of-life.cabal
+++ b/conways-game-of-life.cabal
@@ -6,7 +6,7 @@ license:        MIT
 build-type:     Simple
 cabal-version:  >= 1.8
 
-executable main
+executable gol
   main-is:        Main.hs
   other-modules:  GOL.Rule,
                   GOL.Space,
diff --git a/flake.nix b/flake.nix
index e57aa50..9b0d69c 100644
--- a/flake.nix
+++ b/flake.nix
@@ -23,8 +23,9 @@
         jailbreakUnbreak = pkg:
           pkgs.haskell.lib.doJailbreak (pkg.overrideAttrs (_: { meta = { }; }));
 
-        # DON'T FORGET TO PUT YOUR PACKAGE NAME HERE, REMOVING `throw`
         packageName = "conways-game-of-life";
+
+        execName = "gol";
       in {
         packages.${packageName} =
           haskellPackages.callCabal2nix packageName self rec {
@@ -33,6 +34,13 @@
 
         defaultPackage = self.packages.${system}.${packageName};
 
+        apps.${execName} = {
+          type = "app";
+          program = "${self.packages.${system}.${packageName}}/bin/${execName}";
+        };
+
+        defaultApp = self.apps.${system}.${execName};
+
         devShell = pkgs.mkShell {
           buildInputs = with haskellPackages; [
             ghcid