{ config, lib, pkgs, ... }: let steam_duckstation = pkgs.writeScriptBin "steam_duckstation" '' export LD_LIBRARY_PATH="$LD_LIBRARY_PATH:${pkgs.libglvnd}/lib" exec ${pkgs.duckstation}/bin/duckstation-qt "''${@}" ''; in { imports = [ ]; options.me = { duckstation.enable = lib.mkOption { type = lib.types.bool; default = false; example = true; description = "Whether we want to install duckstation."; }; }; config = lib.mkIf config.me.duckstation.enable ( lib.mkMerge [ (lib.mkIf config.me.graphical { home.packages = with pkgs; [ duckstation steam_duckstation ]; home.file.".local/share/duckstation/settings.ini" = { source = ./files/settings.ini; }; me.persist.directories = [ ".local/share/duckstation/memcards" ".local/share/duckstation/savestates" ]; me.state.directories = [ ".local/share/duckstation/cache" ".local/share/duckstation/shaders" ".local/share/duckstation/screenshots" ".local/share/duckstation/videos" ".local/share/duckstation/covers" ]; nixpkgs.overlays = [ ( final: prev: let optimizeWithFlags = pkg: flags: pkg.overrideAttrs (old: { env.CXXFLAGS = (old.env.CXXFLAGS or "") + (lib.strings.concatStringsSep " " flags); }); original_package = if config.me.optimizations.enable then (optimizeWithFlags prev.duckstation [ "-march=znver2" "-mtune=znver2" ]) else prev.duckstation; in { duckstation = pkgs.buildEnv { name = prev.duckstation.name; paths = [ (config.lib.nixGL.wrap original_package) ]; extraOutputsToInstall = [ "man" "doc" "info" ]; # We have to use 555 instead of the normal 444 here because the .desktop file ends up inside $HOME on steam deck and desktop files must be either not in $HOME or must be executable, otherwise KDE Plasma refuses to execute them. postBuild = '' chmod 0555 $out/share/applications/org.duckstation.DuckStation.desktop ''; }; } ) ]; }) ] ); }