stylix is not the way to go, it's pretty cool, though

hosts/io.nix

@@ -16,7 +16,6 @@
     ./modules/programs.nix
     ./modules/security.nix
     ./modules/services.nix
-    ./modules/stylix.nix
     ./modules/users.nix
     ./modules/virtualisation.nix
   ];

hosts/modules/default.nix

@@ -5,15 +5,14 @@
     ./boot.nix
     ./console.nix
     ./desktop.nix
-    # ./flatpak.nix
-    # ./impermanence.nix
+    ./flatpak.nix
+    ./impermanence.nix
     ./locale.nix
     ./networking.nix
     ./nix.nix
     ./programs.nix
     ./security.nix
     ./services.nix
-    # ./stylix.nix
     ./users.nix
     ./virtualisation.nix
   ];

hosts/modules/stylix.nix

@@ -1,66 +0,0 @@
-{
-  config,
-  hostType,
-  lib,
-  pkgs,
-  ...
-}:
-
-{
-  config = lib.mkMerge [
-    # Common configuration
-    {
-    }
-
-    # Server specific configuration
-    (lib.mkIf hostType.isServer {
-    })
-
-    # Workstation specific configuration
-    (lib.mkIf hostType.isWorkstation {
-      stylix = {
-        enable = true;
-        image = pkgs.fetchurl {
-          url = "https://w.wallhaven.cc/full/dp/wallhaven-dpwvl3.jpg";
-          sha256 = "sha256-h9UeYj8jSRgSv8XL+zgds4KtooLlJ+IqwxZbQEXdCh4=";
-        };
-        base16Scheme = "${pkgs.base16-schemes}/share/themes/catppuccin-mocha.yaml";
-        cursor = {
-          package = pkgs.kdePackages.breeze-icons;
-          name = "Breeze_Light";
-          size = 24;
-        };
-        opacity = {
-          applications = 1.0;
-          desktop = 0.8;
-          popups = config.stylix.opacity.desktop;
-          terminal = 1.0;
-        };
-        fonts = {
-          serif = {
-            package = pkgs.source-serif;
-            name = "Source Serif 4 Display";
-          };
-          sansSerif = {
-            package = pkgs.inter;
-            name = "Inter";
-          };
-          monospace = {
-            package = pkgs.nerd-fonts.fira-code;
-            name = "FiraCode Nerd Font";
-          };
-          emoji = {
-            package = pkgs.noto-fonts-emoji;
-            name = "Noto Color Emoji";
-          };
-          sizes = {
-            applications = 10;
-            desktop = config.stylix.fonts.sizes.applications;
-            popups = config.stylix.fonts.sizes.applications;
-            terminal = 12;
-          };
-        };
-      };
-    })
-  ];
-}

hosts/rotterdam.nix

@@ -16,7 +16,6 @@
     ./modules/programs.nix
     ./modules/security.nix
     ./modules/services.nix
-    ./modules/stylix.nix
     ./modules/users.nix
     ./modules/virtualisation.nix
   ];