Add secret-source as an auth-source

TODO: This still needs /lots/ of work.

init.el

@@ -62,7 +62,9 @@
   (:hook #'+init-add-setup-to-imenu))
 
 (setup (:require auth-source)
-  (:option auth-sources (list (private/ "authinfo")))
+  (:option auth-sources (list 'default  ; secret-source
+                              "secrets:default"
+                              (private/ "authinfo")))
   (:with-mode authinfo-mode
     (:local-set truncate-lines t)))