diff --git a/.nix/with-nixpkgs.nix b/.nix/with-nixpkgs.nix
index ddbb92e..8226c42 100644
--- a/.nix/with-nixpkgs.nix
+++ b/.nix/with-nixpkgs.nix
@@ -39,6 +39,9 @@
         installPhase = ''
           make install PREFIX=$out LIBDIR=$OCAMLFIND_DESTDIR
         '';
+
+        meta.description =
+          "Morbig, where all the dependencies come from `nixpkgs`.";
       };
     };
 }
diff --git a/.nix/with-opam-nix.nix b/.nix/with-opam-nix.nix
index f1e9d1f..b0c4efc 100644
--- a/.nix/with-opam-nix.nix
+++ b/.nix/with-opam-nix.nix
@@ -8,5 +8,11 @@
         resolveArgs.with-doc = true;
         resolveArgs.with-test = true;
       } "morbig" ./.. { ocaml-base-compiler = "*"; };
-    in { packages.with-opam-nix = scope.morbig // { inherit scope; }; };
+    in {
+      packages.with-opam-nix = scope.morbig // {
+        inherit scope;
+        meta.description =
+          "Morbig, where all the dependencies are handled by `opam-nix`.";
+      };
+    };
 }
diff --git a/flake.nix b/flake.nix
index 32a24e4..8efeca2 100644
--- a/flake.nix
+++ b/flake.nix
@@ -29,7 +29,9 @@
       perSystem = { self', pkgs, config, ... }: {
         formatter = pkgs.nixfmt;
 
-        packages.default = self'.packages.with-nixpkgs;
+        packages.default = self'.packages.with-nixpkgs // {
+          meta.description = "Alias for `with-nixpkgs`.";
+        };
 
         ## For each package, we define a corresponding devShell using its inputs
         ## and adding pre-commit hooks and development tools on top.