Add HDMI CEC support to SteamOS, requires supported hardware.
cec-install.sh sets up systemd-sysext then builds and installs an extension that includes libcec and systemd unit files.
The included systemd unit files will:
curl -fsSLO https://github.com/deekue/steamos-libcec-extension/raw/main/cec-install.sh
chmod +x cec-install.sh
./cec-install.sh install
Usage: cec-install.sh <install|update|uninstall>
install install extension and activate
update update extension and activate
uninstall deactive extension and remove