Script for launching Steam with compatibility fixes and support for Nvidia OPTIMUS.
Install it using this PKGBUILD.
Copy steam-start.sh to /usr/bin/steam-start and make it executable:
cp "steam-start.sh" "/usr/bin/steam-start"
chmod +x "/usr/bin/steam-start"Simply run steam-start and Steam will start using this script.
Note: You can edit Steam's desktop file (e.g. /usr/share/applications/steam.desktop) to use steam-start as it's Exec command, so that clicking the Steam icon on your desktop will use this script