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
49 lines
1.1 KiB
Nix
49 lines
1.1 KiB
Nix
{
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description = "Multi-user shared Steam library for Linux using bubblewrap overlay";
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inputs = {
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nixpkgs.url = "github:NixOS/nixpkgs/nixpkgs-unstable";
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};
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outputs = { self, nixpkgs, ... }:
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let
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supportedSystems = [ "x86_64-linux" "aarch64-linux" ];
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forAllSystems = nixpkgs.lib.genAttrs supportedSystems;
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in
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{
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packages = forAllSystems (system:
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let
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pkgs = nixpkgs.legacyPackages.${system};
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activate = pkgs.writeShellApplication {
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name = "steam-shared-activate";
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runtimeInputs = with pkgs; [ acl coreutils findutils ];
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text = ''
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exec "${self}/scripts/activate.sh" "$@"
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'';
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};
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uninstall = pkgs.writeShellApplication {
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name = "steam-shared-uninstall";
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runtimeInputs = with pkgs; [ coreutils ];
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text = ''
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exec "${self}/scripts/uninstall.sh" "$@"
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'';
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};
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add-user = pkgs.writeShellApplication {
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name = "steam-shared-add-user";
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runtimeInputs = with pkgs; [ coreutils ];
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text = ''
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exec "${self}/scripts/add-user.sh" "$@"
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'';
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};
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in
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{
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inherit activate uninstall add-user;
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default = activate;
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}
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);
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};
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}
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