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
36 lines
797 B
Bash
Executable File
36 lines
797 B
Bash
Executable File
#!/usr/bin/env bash
|
|
# add-user.sh — add a user to the shared Steam library
|
|
# Requires sudo.
|
|
set -euo pipefail
|
|
|
|
STEAM_GROUP="steamshare"
|
|
|
|
if [[ $EUID -ne 0 ]]; then
|
|
echo "error: run this script with sudo" >&2
|
|
exit 1
|
|
fi
|
|
|
|
if [[ $# -eq 0 ]]; then
|
|
echo "usage: $0 <username> [username...]" >&2
|
|
exit 1
|
|
fi
|
|
|
|
if ! getent group "$STEAM_GROUP" >/dev/null 2>&1; then
|
|
echo "error: group '$STEAM_GROUP' does not exist — run activate first" >&2
|
|
exit 1
|
|
fi
|
|
|
|
for user in "$@"; do
|
|
if ! id "$user" &>/dev/null; then
|
|
echo " $user: user does not exist, skipping" >&2
|
|
continue
|
|
fi
|
|
|
|
if id -nG "$user" | grep -qw "$STEAM_GROUP"; then
|
|
echo " $user: already in $STEAM_GROUP"
|
|
else
|
|
usermod -aG "$STEAM_GROUP" "$user"
|
|
echo " $user: added to $STEAM_GROUP (log out and back in to take effect)"
|
|
fi
|
|
done
|