{ pkgs, lib, ... }: { programs.gamemode.enable = true; environment.systemPackages = with pkgs; [ gamescope mangohud ]; programs.steam = { enable = true; remotePlay.openFirewall = true; package = pkgs.steam-small.override { extraLibraries = p: with p; [ p.libkrb5 p.keyutils ]; }; }; services.udev.extraRules = '' ACTION=="add", SUBSYSTEM=="block", ENV{ID_PART_ENTRY_UUID}=="a7588d17-2c04-4bb7-8c10-b2aaeed1826c" RUN{program}+="${pkgs.systemd}/bin/systemd-mount --no-block $devnode /media/steam_library/1" ACTION=="remove", SUBSYSTEM=="block", ENV{ID_PART_ENTRY_UUID}=="a7588d17-2c04-4bb7-8c10-b2aaeed1826c" RUN{program}+="${pkgs.systemd}/bin/systemctl stop media-steam_library-1.mount" ACTION=="add", SUBSYSTEM=="block", ENV{ID_PART_ENTRY_UUID}=="89910513-3f2d-4b49-bf0d-ec667d532c61" RUN{program}+="${pkgs.systemd}/bin/systemd-mount --no-block $devnode /media/steam_library/2" ACTION=="remove", SUBSYSTEM=="block", ENV{ID_PART_ENTRY_UUID}=="89910513-3f2d-4b49-bf0d-ec667d532c61" RUN{program}+="${pkgs.systemd}/bin/systemctl stop media-steam_library-2.mount" ''; }