ft (wip): big initial config

hosts/tuxcomp/gaming.nix

@@ -0,0 +1,73 @@
+{ pkgs, ... }:
+
+{
+  programs.gamemode.enable = true;
+  users.users.djai.extraGroups = [ "gamemode" ];
+
+  # capSysNice would make glibc strip LD_PRELOAD from gamescope, breaking steam's overlay.
+  # '--rt' works through the rtprio limit below instead (see the gamescope patch on tuxcomp).
+  programs.gamescope = {
+    enable = true;
+    capSysNice = false;
+  };
+
+  security.pam.loginLimits = [
+    {
+      domain = "@users";
+      type = "-";
+      item = "rtprio";
+      value = "99";
+    }
+    {
+      domain = "@users";
+      type = "-";
+      item = "nice";
+      value = "-19";
+    }
+  ];
+
+  # Wine 10+ uses the kernel's ntsync when /dev/ntsync exists; far cheaper
+  # than esync/fsync under thread contention.
+  boot.kernelModules = [ "ntsync" ];
+
+
+  users.users.djai.packages = with pkgs; [
+    desmume
+    eden
+    libretro.citra
+    prismlauncher
+    steam
+    winetricks
+  ]:
+
+  services.flatpak.packages = [
+    "org.vinegarhq.Sober"
+  ];
+
+  # TODO: switch to home manager
+  # home-manager.users.djai =
+  #   { config, ... }:
+  #   {
+  #     home.packages = with pkgs; [ ];
+  #
+  #     xdg.desktopEntries.sims4 = {
+  #       name = "The Sims 4";
+  #       exec = ''xdg-open "PATHTOEXECHERE"'';
+  #       icon = "${config.home.homeDirectory}/.icons/";
+  #       categories = [ "Game" ];
+  #       terminal = false;
+  #     };
+  #
+  #     # gamescope does fullscreen and scaling; setting content=game sets direct scnaout
+  #     # requires this in hyprland config: render.direct_scanout = 2;
+  #     wayland.windowManager.hyprland.settings.window_rule = [
+  #       {
+  #         match.class = "gamescope";
+  #         fullscreen = true;
+  #         content = "game";
+  #         opaque = true;
+  #         immediate = true;
+  #       }
+  #     ];
+  #   };
+}