TL;DR for setting up Chemacs (particularly for Doom Emacs)

setting-up-chemacs.org

This guide was replaced with https://github.com/hlissner/doom-emacs/blob/develop/docs/getting_started.org#install-doom-alongside-other-configs-with-chemacs

While trying the step ~/doom-emacs/bin/doom quickstart
there is no quickstart option

@amardeep quickstart was replaced with install: ~/doom-emacs/bin/doom install

Here's an updated link to the doom + chemacs2 docs for anyone stumbling upon this now: https://github.com/doomemacs/doomemacs/blob/develop/docs/getting_started.org#install-doom-alongside-other-configs-with-chemacs2

Also if you move your Doom .emac.d directory I think you need to run doom sync again (or completely reinstall doom)