try out stylix

modules/graphical/default.nix

@@ -16,5 +16,6 @@
     ./openrgb.nix
     ./plasma.nix
     ./shared.nix
+    ./stylix.nix
   ];
 }

modules/graphical/plasma.nix

@@ -1,29 +1,32 @@
-{lib,  config, pkgs, ... }:
+{ lib, config, pkgs, ... }:
 with lib;
-let
-  cfg = config.custom.graphical.plasma;
-in
-{
+let cfg = config.custom.graphical.plasma;
+in {
   options.custom.graphical.plasma = {
     enable = mkEnableOption "Enables plasma";
   };
-  
+
   config = mkIf cfg.enable {
     services.xserver = {
       enable = true;
-      xkb.layout = config.mainUser.layout; 
+      xkb.layout = config.mainUser.layout;
       xkb.variant = config.mainUser.variant;
-      displayManager.sddm.enable = true;
+      windowManager.i3 = {
+        package = pkgs.i3-gaps;
+        enable = true;
+        configFile = ../../.config/i3/kde-config;
+      };
+      displayManager = {
+        sddm.enable = true;
+      };
       #displayManager.sddm.settings.Wayland.SessionDir = "${pkgs.plasma5Packages.plasma-workspace}/share/wayland-sessions";
       #displayManager.sddm.wayland.enable = true;
-  
+
       libinput = {
         enable = true;
-  
+
         # disabling mouse acceleration
-        mouse = {
-          accelProfile = "flat";
-        };
+        mouse = { accelProfile = "flat"; };
       };
     };
     services.xserver.desktopManager.plasma5.enable = true;
@@ -31,24 +34,23 @@ in
     #services.desktopManager.plasma6.enable = true;
     #environment.plasma6.excludePackages = with pkgs.kdePackages; [ ocean-sound-theme spectacle ];
 
-  
-    environment.sessionVariables = {
-      __GL_YIELD = "usleep";
-      MOZ_ENABLE_WAYLAND = "1";
-      NIXOS_OZONE_WL = "1";
-    };
-  
+    #environment.sessionVariables = {
+    #  __GL_YIELD = "usleep";
+    #  MOZ_ENABLE_WAYLAND = "1";
+    #  NIXOS_OZONE_WL = "1";
+    #};
+
     xdg = {
       portal = {
         enable = true;
-        extraPortals = with pkgs; [
-          xdg-desktop-portal-wlr
-          #xdg-desktop-portal-gtk
-        ];
+        extraPortals = with pkgs;
+          [
+            xdg-desktop-portal-wlr
+            #xdg-desktop-portal-gtk
+          ];
       };
     };
-  
-  
+
     environment.systemPackages = with pkgs; [
       libsForQt5.bismuth # auto tiling
       wayland-utils

modules/graphical/stylix.nix

@@ -0,0 +1,48 @@
+{ lib, config, pkgs, ... }:
+with lib;
+let cfg = config.custom.graphical.stylix;
+in {
+  options.custom.graphical.stylix = {
+    enable = mkEnableOption "Enables stylix";
+  };
+
+  # https://danth.github.io/stylix/options/nixos.html
+  config =
+    let nerdfonts = pkgs.nerdfonts.override { fonts = [ "Hack" "Noto" ]; };
+    in mkIf cfg.enable {
+      stylix = {
+        polarity = "dark";
+        #image = ./yuyukowallpaper1809.png;
+        #base16Scheme = ../../home-manager/themes/yorha/scheme.yml;
+        base16Scheme =
+          "${pkgs.base16-schemes}/share/themes/catppuccin-macchiato.yaml";
+        cursor = {
+          size = 24;
+          name = "breeze_cursors";
+          package = pkgs.libsForQt5.breeze-gtk;
+        };
+        opacity = {
+          applications = 0.7;
+          desktop = 0.7;
+          terminal = 0.7;
+        };
+        fonts = {
+          serif = config.stylix.fonts.sansSerif;
+          sansSerif = {
+            package = pkgs.noto-fonts;
+            name = "Noto Sans";
+          };
+          sizes = {
+            applications = 12;
+            desktop = 10;
+            popups = 10;
+            terminal = 12;
+          };
+          monospace = {
+            package = nerdfonts;
+            name = "Hack";
+          };
+        };
+      };
+    };
+}