Builds a full dev workstation from a bare Arch Linux install. https://git.cjennings.net/archsetup/atom?h=main 2026-08-14T03:34:42+00:00 2026-08-14T03:34:42+00:00 Craig Jennings c@cjennings.net 2026-08-14T03:34:42+00:00 urn:sha1:a42e06d6ef4fc6296a17c69580aa9911667a6c88 Arch's brightnessctl ships no udev rules and leans on logind, which grants brightness writes only to the active seat session. Anything outside that session (a script, an ssh shell, a panel launched into a different one) meets root-owned sysfs and gets EPERM. On velox both panel sliders were dead after a fresh install. configure_backlight_access writes a udev rule making the backlight and keyboard-LED brightness attributes group-writable by video, which create_user already adds the user to. I granted the keyboard LED to video rather than input: anyone in input can read every input device, which is too much authority for dimming a keyboard. essential_services is already marked complete on machines installed before this step, so a re-run skips them. The post-install checklist carries the manual route.