(add-to-list 'major-mode-remap-alist '(ruby-mode . ruby-ts-mode))
If you try these modes and don't like them, you can go back to the
-"built-in" modes by restarting Emacs. But please tell us why you
-didn't like the tree-sitter based modes, so that we could try
+"built-in" modes by restarting Emacs. (If you use desktop.el to save
+and restore Emacs sessions, make sure no buffer under these modes is
+recorded in the desktop file, before restarting.) But please tell us
+why you didn't like the tree-sitter based modes, so that we could try
improving them.
Each major mode based on tree-sitter needs a language grammar library,