imperium: Get TF2 working

Requires launch option: LD_PRELOAD=$LD_PRELOAD:/run/current-system/sw/lib/libtcmalloc_minimal.so %command%

DRG also runs through Proton but at a prohibitive framerate whenever things are onscreen

flake.nix

@@ -61,6 +61,9 @@
         system = "x86_64-linux";
         modules = [
           self.nixosModules.beatific
+          ({ ... }: {
+            environment.systemPackages = [ nixpkgs-2311.legacyPackages."i686-linux".gperftools ];
+          })
           ./machine/imperium
         ];
       };

machine/imperium/default.nix

@@ -41,6 +41,13 @@
     extraGroups = [ "networkmanager" ];
   };
 
+  # Configs needed to run TF2 on integrated graphics
+  programs.steam.enable = true;
+  nixpkgs.config.allowUnfree = true;
+  services.xserver.videoDrivers = [ "i915" ];
+  hardware.opengl.enable = true;
+  hardware.opengl.driSupport32Bit = true;
+
   environment.systemPackages = with pkgs; [
     firefox
     libreoffice