Chemacs 2 is an Emacs profile switcher, it makes it easy to run multiple Emacs configurations side by side.
So I configured Chemacs and added profiles for my default Doom config and also one for Nano. This is crazy, but I can now run both configurations at the same time!. Here’s a screenshot. The left window is Org-journal in Nano and the right window is my org-mode configuration in Doom.