nodm is an automatic display manager which automatically starts an X session at system boot. It is meant for devices like smartphones, but can be used on a regular computer as well, if the security implications are acceptable.
The author is no longer continuing to develop, and had written a minimal autologin greeter for lightdm ( AUR) instead. It has the same autologin behaviour as nodm, but being based on lightdm it stays on top of modern display manager requirements.
Install the package.
Now ensure no other display managers get started by disabling their systemd services.
After installing nodm, modify the
/etc/nodm.conf file. Set the
NODM_USER variable to the user which should be automatically logged in, and change the
NODM_XSESSION variable to point to the script that starts your session. The
NODM_XSESSION script must be executable!
nodm.service so nodm will be started on boot.
For proper session handling, create pam.d file with the following content:
#%PAM-1.0 auth include system-local-login account include system-local-login password include system-local-login session include system-local-login