Create a module for generating partition scripts

lib/modules/partition.nix

@@ -0,0 +1,18 @@
+{ lib, ... }:
+  let
+  in {
+    options = {
+      partition = {
+        script = lib.mkOption {
+          type = lib.types.lines;
+          description = "The script for partitioning the system's disks.";
+        };
+      };
+    };
+
+    config = {
+      partition = {
+        script = "echo 'hello world'";
+      };
+    };
+  }