feat: Worked with matt to create all the things

lib/util/nullIfEmpty.ts

@@ -0,0 +1,10 @@
+/**
+ * A useful tool when doing a getConfig.
+ * Look into the config {@link FileHelper} for an example of the use.
+ * @param s
+ * @returns
+ */
+export default function nullIfEmpty(s: null | Record<string, unknown>) {
+  if (s === null) return null;
+  return Object.keys(s).length === 0 ? null : s;
+}