diff --git a/modules2/calculator.nix b/modules2/calculator.nix
new file mode 100644
index 00000000..41ebe819
--- /dev/null
+++ b/modules2/calculator.nix
@@ -0,0 +1,7 @@
+{
+  flake.modules.nixos.pc =
+    { pkgs, ... }:
+    {
+      environment.systemPackages = [ pkgs.bc ];
+    };
+}