Package the official Grok Bot Linux .deb (internal name: sand) for Arch.
Wraps /opt/Grok Bot/sand with a Wayland launcher and grok-bot desktop entry.
Linux has no latest feed; update-pkgver.sh resolves version+commit from the
darwin-arm64 sand feed and HEAD-checks the Linux deb before pinning.
Tobi Lutke
dbee603e5b