Set permalinks by default the same way is Wordpress used to do it.

hugo.toml

@@ -43,6 +43,12 @@ delayDisqus = true
 showRelatedPosts = true
 #  hideAuthor = true
 
+[permalinks]
+  [permalinks.page]
+    post = '/:year/:month/:slug/'
+  [permalinks.section]
+    post = '/posts/'
+
 [Author]
 # Set only your "username" for default hosts and full URLs otherwise (e.g., "https://MyGitLab.org/username")
 name = "Señor Rolando"