78 lines
2.1 KiB
Nix
78 lines
2.1 KiB
Nix
{ config
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, lib
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, pkgs
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, ...
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}:
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let
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cfg = config.programs.gamescope;
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gamescope =
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let
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wrapperArgs =
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lib.optional (cfg.args != [ ])
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''--add-flags "${builtins.toString cfg.args}"''
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++ builtins.attrValues (builtins.mapAttrs (var: val: "--set-default ${var} ${val}") cfg.env);
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in
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pkgs.runCommand "gamescope" { nativeBuildInputs = [ pkgs.makeBinaryWrapper ]; } ''
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mkdir -p $out/bin
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makeWrapper ${cfg.package}/bin/gamescope $out/bin/gamescope --inherit-argv0 \
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${builtins.toString wrapperArgs}
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'';
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in
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{
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options.programs.gamescope = {
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enable = lib.mkEnableOption "gamescope, the SteamOS session compositing window manager";
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package = lib.mkPackageOption pkgs "gamescope" { };
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capSysNice = lib.mkOption {
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type = lib.types.bool;
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default = false;
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description = ''
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Add cap_sys_nice capability to the GameScope
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binary so that it may renice itself.
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'';
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};
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args = lib.mkOption {
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type = lib.types.listOf lib.types.str;
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default = [ ];
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example = [ "--rt" "--prefer-vk-device 8086:9bc4" ];
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description = ''
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Arguments passed to GameScope on startup.
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'';
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};
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env = lib.mkOption {
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type = lib.types.attrsOf lib.types.str;
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default = { };
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example = lib.literalExpression ''
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# for Prime render offload on Nvidia laptops.
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# Also requires `hardware.nvidia.prime.offload.enable`.
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{
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__NV_PRIME_RENDER_OFFLOAD = "1";
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__VK_LAYER_NV_optimus = "NVIDIA_only";
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__GLX_VENDOR_LIBRARY_NAME = "nvidia";
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}
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'';
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description = ''
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Default environment variables available to the GameScope process, overridable at runtime.
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'';
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};
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};
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config = lib.mkIf cfg.enable {
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security.wrappers = lib.mkIf cfg.capSysNice {
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gamescope = {
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owner = "root";
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group = "root";
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source = "${gamescope}/bin/gamescope";
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capabilities = "cap_sys_nice+pie";
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};
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};
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environment.systemPackages = lib.mkIf (!cfg.capSysNice) [ gamescope ];
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};
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meta.maintainers = with lib.maintainers; [ nrdxp ];
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}
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