Move custom packages

flake-modules/drafts.nix

@@ -0,0 +1,16 @@
+{
+  perSystem =
+    { pkgs, ... }:
+    {
+      packages.drafts = pkgs.writeShellApplication {
+        name = "drafts";
+
+        runtimeInputs = with pkgs; [ gnugrep ];
+
+        text = ''
+          echo "oob"
+            grep -r 'draft: true' "''${1:-source}"
+        '';
+      };
+    };
+}