major refactor: begin work to switch to GNOME and preservation

hosts/nero/configuration.nix

@@ -8,50 +8,12 @@
   imports = [
     ../shared/nixos-pc.nix
     ../../features/gnome.nix
-    ../../features/flatpak.nix
     ../../features/keyd.nix
   ];
 
-  nixpkgs.overlays = [
-    inputs.cheatengine.overlays.default
-  ];
-
   networking.hostName = "nero";
 
   services = {
-    xserver = {
-      videoDrivers = [ "nvidia" ];
-    };
-
-    flatpak = {
-      packages = [
-        {
-          appId = "com.discordapp.Discord";
-          origin = "flathub";
-        }
-        {
-          appId = "com.github.Matoking.protontricks";
-          origin = "flathub";
-        }
-        {
-          appId = "com.steamgriddb.SGDBoop";
-          origin = "flathub";
-        }
-        {
-          appId = "com.vysp3r.ProtonPlus";
-          origin = "flathub";
-        }
-        {
-          appId = "io.github.ryubing.Ryujinx";
-          origin = "flathub";
-        }
-        {
-          appId = "io.github.Amethyst.ModManager";
-          origin = "amethyst-mod-manager";
-        }
-      ];
-    };
-
     wivrn = {
       enable = true;
       openFirewall = true;
@@ -60,8 +22,6 @@
   };
 
   programs = {
-    gamemode.enable = true;
-
     steam = {
       enable = true;
       remotePlay.openFirewall = true;
@@ -98,19 +58,8 @@
 
   environment = {
     systemPackages = with pkgs; [
-      mangohud
-      gamescope
-      gamescope-wsi
-      cheatengine
-      lsfg-vk
-      lsfg-vk-ui
-      qbittorrent
       aseprite
-
-      inputs.scopebuddy.packages.${pkgs.stdenv.hostPlatform.system}.default
       inputs.xivlauncher-rb.packages.${pkgs.stdenv.hostPlatform.system}.default
-
-      (callPackage ../../packages/aseprite-thumbnailer-kde/package.nix { })
     ];
   };
 }