log failing usage tests, note elpaca works like straight

README.org

@@ -14,7 +14,7 @@ environments.  They can be =grep='d through.
 With straight.el and use-package:
 #+begin_src elisp
 (use-package dconf-mode
-  :straight
+  :straight ;;replace with elpaca or similar
   (:type git
          :repo "https://git.marq42.xyz/mir/dconf-mode"))
 #+end_src
@@ -35,7 +35,8 @@ Thus, editing `desktop.gsets' modifies the hive =/org/gnome/desktop/=.
 * TODO
 ** have an option to use a temp buffer
 ** test
-- working with nonexistent files
+- working with nonexistent files? NO
+  - working with nonexistent directory? NO
 - older/newer emacs versions
   - lexical binding?