Installs the Kyber community multiplayer launcher (simonlinuxcraft/kyber-
linuxport-unofficial) via the setup.sh wizard. Handles glibc check, bwrap/
userns fix, GitHub release fetch, desktop entry, and bin symlink. Warns on
Intel integrated graphics and links to Sunshine as the streaming alternative.
Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01D8ckUJQtj1pH8jtAddBDZs
