add: gamescope steam and fonts

nixos/gaming/steam/default.nix

@@ -1,11 +1,33 @@
-{ pkgs, ... }:
+{
+  config,
+  pkgs,
+  ...
+}:
 
 {
   programs.steam = {
     enable = true;
+    remotePlay.openFirewall = true;
+    dedicatedServer.openFirewall = true;
+    extest.enable = true;
+    protontricks.enable = true;
     extraCompatPackages = with pkgs; [
       proton-ge-bin
     ];
+
+    gamescopeSession = {
+      enable = true;
+      env = {
+        STEAM_ALREADY_GAMESCOPED = "1";
+        SDL_VIDEO_MINIMIZE_ON_FOCUS_LOSS = "0";
+        WINE_MOUSE_WARP_OVERRIDE = "force";
+      };
+      args = [
+        "--fullscreen"
+        "--force-grab-cursor"
+      ];
+    };
+
     package = pkgs.steam.override {
       extraEnv = {
         STEAM_USE_PORTAL = "1";
@@ -47,11 +69,30 @@
           pkgsi686Linux.libpulseaudio
         ];
     };
-    gamescopeSession.enable = true;
+  };
+
+  programs.gamescope = {
+    enable = true;
+    capSysNice = true;
   };
   programs.bash.enable = true;
   hardware.graphics.enable = true;
-  environment.systemPackages = with pkgs; [
-    protontricks
+  hardware.steam-hardware.enable = true;
+  environment.systemPackages = [
+    (pkgs.lib.hiPrio (
+      pkgs.writeShellScriptBin "steam" ''
+        REAL_STEAM="${config.programs.steam.package}/bin/steam"
+
+        if [ -n "$STEAM_ALREADY_GAMESCOPED" ] || [ -n "$GAMESCOPE_WAYLAND_DISPLAY" ]; then
+          exec "$REAL_STEAM" "$@"
+        fi
+
+        if [ "$STEAM_USE_GAMESCOPE" = "1" ] && command -v steam-gamescope >/dev/null 2>&1; then
+          exec steam-gamescope "$@"
+        fi
+
+        exec "$REAL_STEAM" "$@"
+      ''
+    ))
   ];
 }

nixos/system/default.nix

@@ -1,4 +1,4 @@
-{ ... }:
+{ pkgs, ... }:
 
 {
   imports = [
@@ -6,4 +6,54 @@
     ./nix
     ./power.nix
   ];
+
+  fonts = {
+    packages = with pkgs; [
+      noto-fonts
+      noto-fonts-cjk-sans
+      noto-fonts-cjk-serif
+      noto-fonts-color-emoji
+      ipaexfont
+      nerd-fonts.jetbrains-mono
+    ];
+
+    fontconfig = {
+      enable = true;
+      antialias = true;
+
+      hinting = {
+        enable = true;
+        style = "slight";
+        autohint = false;
+      };
+
+      subpixel = {
+        rgba = "rgb";
+        lcdfilter = "default";
+      };
+
+      defaultFonts = {
+        serif = [
+          "JetBrainsMono Nerd Font"
+          "Noto Serif CJK JP"
+          "Noto Serif"
+          "IPAexMincho"
+        ];
+        sansSerif = [
+          "JetBrainsMono Nerd Font"
+          "Noto Sans CJK JP"
+          "Noto Sans"
+          "IPAexGothic"
+        ];
+        monospace = [
+          "JetBrainsMono Nerd Font Mono"
+          "JetBrainsMono Nerd Font"
+          "Noto Sans Mono CJK JP"
+          "Noto Sans CJK JP"
+          "IPAexGothic"
+        ];
+        emoji = [ "Noto Color Emoji" ];
+      };
+    };
+  };
 }

nixos/users/default.nix

@@ -1,4 +1,4 @@
-{ config, pkgs, ... }:
+{ pkgs, ... }:
 
 {
   users.users.elars = {
@@ -30,5 +30,4 @@
     autosuggestions.enable = true;
     syntaxHighlighting.enable = true;
   };
-  programs.firefox.enable = true;
 }