Controls and displays settings for the Lenovo Ideapad 5 15ARE05 only.
Do not use this with any other laptop including the Lenovo Ideapad 5 14ARE05. Blame Lenovo.
Made using information and commands from the laptop's ArchWiki page.
Special thanks to ArchWiki user Bad Taste for figuring out the acpi commands.
This script is POSIX compatible and contains no bashisms