I have archlinux ARM installed on a RasPi that drives some data processing operation where no user interaction is expected.
My archlinux installation is pretty bare, just a few extra packages necessary for the job. Therefore, no X.
The PC is equipped with a keyboard but the hardware is locked away, not accessible for any outsider, only at admin routine. It is expected that the PC is powered up and just starts its processing.
The operation is handled by Python script that is executed at user login (/.bashrc and /.bash_profile).
The only thing left to implement is auto login for the particular user, right after successful boot. Please give me some hints, I come from Ubuntu world, the archlinux feels somewhat alien to me.