Felix Förtsch
1ece944a45
Share one Steam game library across multiple Linux users with fully isolated Proton prefixes. Uses bubblewrap to create a per-user kernel overlay on /opt/steam/steamapps/compatdata/ so game files stay shared while Proton prefixes are isolated per user, with no compatibility tool selection or per-game configuration required. Includes: - steam-shared launcher that sets up the per-user overlay and execs Steam inside a bwrap mount namespace - activate/uninstall scripts plus an add-user helper for steamshare group membership - permission watcher (steam-fix-perms.path/.service) to keep ACLs correct under pressure-vessel's restrictive mode bits - .desktop override that routes the system Steam launcher through steam-shared - Nix flake exposing activate, uninstall, and add-user packages - design doc and implementation plan covering the approach
61 lines
1.7 KiB
Bash
Executable File
61 lines
1.7 KiB
Bash
Executable File
#!/usr/bin/env bash
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# uninstall.sh — remove the shared Steam library system
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# Requires sudo. Safe to run multiple times.
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set -euo pipefail
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STEAM_GROUP="steamshare"
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STEAM_DIR="/opt/steam"
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if [[ $EUID -ne 0 ]]; then
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echo "error: run this script with sudo" >&2
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exit 1
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fi
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echo "[1/5] Remove launcher"
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rm -f /usr/local/bin/steam-shared
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echo " done"
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echo "[2/5] Remove .desktop override"
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rm -f /usr/local/share/applications/steam.desktop
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echo " done"
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echo "[3/5] Remove permission watcher"
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if systemctl is-active --quiet steam-fix-perms.path 2>/dev/null; then
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systemctl disable --now steam-fix-perms.path
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fi
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rm -f /etc/systemd/system/steam-fix-perms.path
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rm -f /etc/systemd/system/steam-fix-perms.service
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rm -f /usr/local/bin/steam-fix-perms
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systemctl daemon-reload 2>/dev/null
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echo " done"
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echo "[4/5] Remove steamshare group"
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if getent group "$STEAM_GROUP" >/dev/null 2>&1; then
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while IFS= read -r u; do
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[[ -z "$u" ]] && continue
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gpasswd -d "$u" "$STEAM_GROUP" >/dev/null 2>&1 || true
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done < <(getent group "$STEAM_GROUP" | cut -d: -f4 | tr ',' '\n')
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groupdel "$STEAM_GROUP" 2>/dev/null || true
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echo " removed group $STEAM_GROUP"
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else
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echo " group does not exist"
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fi
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echo "[5/5] Shared library directory"
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if [[ -d "$STEAM_DIR" ]]; then
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echo " $STEAM_DIR exists ($(du -sh "$STEAM_DIR" 2>/dev/null | cut -f1) used)"
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echo " to remove: sudo rm -rf $STEAM_DIR"
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echo " (not removed automatically — contains game data)"
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else
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echo " does not exist"
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fi
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echo
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echo "========================================"
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echo " Uninstall complete."
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echo
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echo " Each user should:"
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echo " 1. Remove $STEAM_DIR from Steam → Settings → Storage"
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echo " 2. Optionally remove ~/.local/share/steam-shared/"
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echo "========================================"
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