diff --git a/nixos/doc/manual/from_md/release-notes/rl-2305.section.xml b/nixos/doc/manual/from_md/release-notes/rl-2305.section.xml
index a672deb20b64..1a9d3bdb6c6b 100644
--- a/nixos/doc/manual/from_md/release-notes/rl-2305.section.xml
+++ b/nixos/doc/manual/from_md/release-notes/rl-2305.section.xml
@@ -276,6 +276,17 @@
           or configure your firewall.
         </para>
       </listitem>
+      <listitem>
+        <para>
+          Kime has been updated from 2.5.6 to 3.0.2 and the
+          <literal>i18n.inputMethod.kime.config</literal> option has
+          been removed. Users should use
+          <literal>daemonModules</literal>,
+          <literal>iconColor</literal>, and
+          <literal>extraConfig</literal> options under
+          <literal>i18n.inputMethod.kime</literal> instead.
+        </para>
+      </listitem>
       <listitem>
         <para>
           <literal>llvmPackages_rocm.llvm</literal> will not contain
diff --git a/nixos/doc/manual/release-notes/rl-2305.section.md b/nixos/doc/manual/release-notes/rl-2305.section.md
index c0518d4cd6f0..2563da719f62 100644
--- a/nixos/doc/manual/release-notes/rl-2305.section.md
+++ b/nixos/doc/manual/release-notes/rl-2305.section.md
@@ -71,6 +71,8 @@ In addition to numerous new and upgraded packages, this release has the followin
 
 - The [services.unifi-video.openFirewall](#opt-services.unifi-video.openFirewall) module option default value has been changed from `true` to `false`. You will need to explicitly set this option to `true`, or configure your firewall.
 
+- Kime has been updated from 2.5.6 to 3.0.2 and the `i18n.inputMethod.kime.config` option has been removed. Users should use `daemonModules`, `iconColor`, and `extraConfig` options under `i18n.inputMethod.kime` instead.
+
 - `llvmPackages_rocm.llvm` will not contain `clang` or `compiler-rt`. `llvmPackages_rocm.clang` will not contain `llvm`. `llvmPackages_rocm.clangNoCompilerRt` has been removed in favor of using `llvmPackages_rocm.clang-unwrapped`.
 
 - The EC2 image module previously detected and automatically mounted ext3-formatted instance store devices and partitions in stage-1 (initramfs), storing `/tmp` on the first discovered device. This behaviour, which only catered to very specific use cases and could not be disabled, has been removed. Users relying on this should provide their own implementation, and probably use ext4 and perform the mount in stage-2.
diff --git a/nixos/modules/i18n/input-method/kime.nix b/nixos/modules/i18n/input-method/kime.nix
index 29224a6bf75f..e82996926b28 100644
--- a/nixos/modules/i18n/input-method/kime.nix
+++ b/nixos/modules/i18n/input-method/kime.nix
@@ -1,40 +1,37 @@
 { config, pkgs, lib, generators, ... }:
-with lib;
-let
-  cfg = config.i18n.inputMethod.kime;
-  yamlFormat = pkgs.formats.yaml { };
-in
-{
-  options = {
-    i18n.inputMethod.kime = {
-      config = mkOption {
-        type = yamlFormat.type;
-        default = { };
-        example = literalExpression ''
-          {
-            daemon = {
-              modules = ["Xim" "Indicator"];
-            };
+let imcfg = config.i18n.inputMethod;
+in {
+  imports = [
+    (lib.mkRemovedOptionModule [ "i18n" "inputMethod" "kime" "config" ] "Use i18n.inputMethod.kime.* instead")
+  ];
 
-            indicator = {
-              icon_color = "White";
-            };
-
-            engine = {
-              hangul = {
-                layout = "dubeolsik";
-              };
-            };
-          }
-          '';
-        description = lib.mdDoc ''
-          kime configuration. Refer to <https://github.com/Riey/kime/blob/v${pkgs.kime.version}/docs/CONFIGURATION.md> for details on supported values.
-        '';
-      };
+  options.i18n.inputMethod.kime = {
+    daemonModules = lib.mkOption {
+      type = lib.types.listOf (lib.types.enum [ "Xim" "Wayland" "Indicator" ]);
+      default = [ "Xim" "Wayland" "Indicator" ];
+      example = [ "Xim" "Indicator" ];
+      description = lib.mdDoc ''
+        List of enabled daemon modules
+      '';
+    };
+    iconColor = lib.mkOption {
+      type = lib.types.enum [ "Black" "White" ];
+      default = "Black";
+      example = "White";
+      description = lib.mdDoc ''
+        Color of the indicator icon
+      '';
+    };
+    extraConfig = lib.mkOption {
+      type = lib.types.lines;
+      default = "";
+      description = lib.mdDoc ''
+        extra kime configuration. Refer to <https://github.com/Riey/kime/blob/v${pkgs.kime.version}/docs/CONFIGURATION.md> for details on supported values.
+      '';
     };
   };
 
-  config = mkIf (config.i18n.inputMethod.enabled == "kime") {
+  config = lib.mkIf (imcfg.enabled == "kime") {
     i18n.inputMethod.package = pkgs.kime;
 
     environment.variables = {
@@ -43,7 +40,12 @@ in
       XMODIFIERS    = "@im=kime";
     };
 
-    environment.etc."xdg/kime/config.yaml".text = replaceStrings [ "\\\\" ] [ "\\" ] (builtins.toJSON cfg.config);
+    environment.etc."xdg/kime/config.yaml".text = ''
+      daemon:
+        modules: [${lib.concatStringsSep "," imcfg.kime.daemonModules}]
+      indicator:
+        icon_color: ${imcfg.kime.iconColor}
+    '' + imcfg.kime.extraConfig;
   };
 
   # uses attributes of the linked package
diff --git a/pkgs/tools/inputmethods/kime/default.nix b/pkgs/tools/inputmethods/kime/default.nix
index 68a91d2bfca7..fc69d47a14fc 100644
--- a/pkgs/tools/inputmethods/kime/default.nix
+++ b/pkgs/tools/inputmethods/kime/default.nix
@@ -2,32 +2,34 @@
 , withWayland ? true
 , withIndicator ? true, dbus, libdbusmenu
 , withXim ? true, xorg, cairo
-, withGtk2 ? true, gtk2
 , withGtk3 ? true, gtk3
+, withGtk4 ? true, gtk4
 , withQt5 ? true, qt5
+, withQt6 ? false, qt6
 }:
 
 let
-  cmake_args = lib.optionals withGtk2 ["-DENABLE_GTK2=ON"]
-  ++ lib.optionals withGtk3 ["-DENABLE_GTK3=ON"]
-  ++ lib.optionals withQt5 ["-DENABLE_QT5=ON"];
+  cmake_args = lib.optionals withGtk3 ["-DENABLE_GTK3=ON"]
+  ++ lib.optionals withGtk4 ["-DENABLE_GTK4=ON"]
+  ++ lib.optionals withQt5 ["-DENABLE_QT5=ON"]
+  ++ lib.optionals withQt6 ["-DENABLE_QT6=ON"];
 
   optFlag = w: (if w then "1" else "0");
 in
 stdenv.mkDerivation rec {
   pname = "kime";
-  version = "2.5.6";
+  version = "3.0.2";
 
   src = fetchFromGitHub {
     owner = "Riey";
     repo = pname;
     rev = "v${version}";
-    sha256 = "sha256-r5luI6B4IjNTbh2tzpqabokgwkmbyXrA61+F2HDEWuo=";
+    sha256 = "sha256-qLQ6DmV7KHhdXWR5KtO52cmXBm818zKJVj4nxsR14dc=";
   };
 
   cargoDeps = rustPlatform.fetchCargoTarball {
     inherit src;
-    sha256 = "sha256-GvBnNPY51RPt+I73oet5tB/EE2UsEPKbelJZkSY3xNw=";
+    sha256 = "sha256-/o9b7YvrpV+IujkllFWAz6Mg4CbS9BInF8antfZ0Vsw=";
   };
 
   # Replace autostart path
@@ -68,6 +70,7 @@ stdenv.mkDerivation rec {
     export KIME_ICON_DIR=share/icons
     export KIME_LIB_DIR=lib
     export KIME_QT5_DIR=lib/qt-${qt5.qtbase.version}
+    export KIME_QT6_DIR=lib/qt-${qt6.qtbase.version}
     bash scripts/install.sh "$out"
     runHook postInstall
   '';
@@ -84,9 +87,10 @@ stdenv.mkDerivation rec {
 
   buildInputs = lib.optionals withIndicator [ dbus libdbusmenu ]
   ++ lib.optionals withXim [ xorg.libxcb cairo ]
-  ++ lib.optionals withGtk2 [ gtk2 ]
   ++ lib.optionals withGtk3 [ gtk3 ]
-  ++ lib.optionals withQt5 [ qt5.qtbase ];
+  ++ lib.optionals withGtk4 [ gtk4 ]
+  ++ lib.optionals withQt5 [ qt5.qtbase ]
+  ++ lib.optionals withQt6 [ qt6.qtbase ];
 
   nativeBuildInputs = [
     pkg-config