I found some info which is (apart from the systemd stuff) very much like the way I was doing it over a decade ago on Arch. Perhaps someone else here will find it useful (or at least interesting)
So here it is a copy of my note that I made for myself:
To avoid the display manager, execute:
sudo systemctl set-default multi-user.target
This will boot system in console mode instead of graphical mode.
Start X automatically when logging into tty1 by adding the following (from Gentoo wiki) to your ~/.bash_profile file:
if [[ -z $DISPLAY ]] && [[ $(tty) = /dev/tty1 ]]; then exec startx; fi
To auto-login via console create a getty override file with
sudo systemctl edit getty@tty1
and add following lines in it:
[Service]
ExecStart=
ExecStart=-/usr/sbin/agetty --autologin username --noclear %I $TERM
where username is your login name.
Then do:
sudo systemctl enable getty@tty1.
& you should be able to boot into your WM/DE via the content of your ~/.xinitrc
My ~/.xinitrc follows:
#### "#!/bin/sh" DON'T USE THIS LINE
# DO be sure to make the file executable though.
# ~/.xinitrc
# This file is sourced when running startx &
# other programs which call xinit.
# As in all Bash/sh scripts.
# Lines starting with # are comments.
# Set background to your favorite pic
#xsetbg -fullscreen /path/to/backgound.png &
# ALWAYS put an '&' at the end of any command
# except the last one where you call your WM or DE.
# Start an XTerm
/usr/bin/X11/xterm &
# You can start other applications from here,
# it is what we used to use back in the old days before
# ~/.config/autostart & /etc/xdg/autostart
# Start the system's window manager
exec openbox-session
That’s it, it works a treat for me, & it really isn’t very hard to do. Getting the info’ is the time consuming part.