diff --git a/pkgs/by-name/ki/kitty/libxkbcommon-runtime-path.patch b/pkgs/by-name/ki/kitty/libxkbcommon-runtime-path.patch
index aa7c5cedaeb1..f949ef87fa25 100644
--- a/pkgs/by-name/ki/kitty/libxkbcommon-runtime-path.patch
+++ b/pkgs/by-name/ki/kitty/libxkbcommon-runtime-path.patch
@@ -1,23 +1,23 @@
-diff --git a/kitty/key_names.py b/kitty/key_names.py
-index 1c4ce3487..00d767d45 100644
---- a/kitty/key_names.py
-+++ b/kitty/key_names.py
-@@ -59,17 +59,7 @@ if is_macos:
- else:
+diff --git i/kitty/key_names.py w/kitty/key_names.py
+index d496339..2a1d9bc 100644
+--- i/kitty/key_names.py
++++ w/kitty/key_names.py
+@@ -67,17 +67,7 @@ def get_key_name_lookup() -> LookupFunc:
      def load_libxkb_lookup() -> LookupFunc:
          import ctypes
+ 
 -        for suffix in ('.0', ''):
 -            with suppress(Exception):
 -                lib = ctypes.CDLL(f'libxkbcommon.so{suffix}')
 -                break
 -        else:
 -            from ctypes.util import find_library
+-
 -            lname = find_library('xkbcommon')
 -            if lname is None:
 -                raise RuntimeError('Failed to find libxkbcommon')
 -            lib = ctypes.CDLL(lname)
--
 +        lib = ctypes.CDLL('@libxkbcommon@')
+ 
          f = lib.xkb_keysym_from_name
          f.argtypes = [ctypes.c_char_p, ctypes.c_int]
-         f.restype = ctypes.c_int
diff --git a/pkgs/by-name/ki/kitty/package.nix b/pkgs/by-name/ki/kitty/package.nix
index 74978c0f6060..dbabc74eb17b 100644
--- a/pkgs/by-name/ki/kitty/package.nix
+++ b/pkgs/by-name/ki/kitty/package.nix
@@ -46,26 +46,42 @@
   makeBinaryWrapper,
   darwin,
   cairo,
+  shader-slang,
 }:
 
+let
+  shader-slang' = shader-slang.overrideAttrs (
+    finalAttrs: previousAttrs: {
+      version = "2026.18";
+      src = fetchFromGitHub {
+        owner = "shader-slang";
+        repo = "slang";
+        tag = "v${finalAttrs.version}";
+        hash = "sha256-GlXTDfC6BLENmrzBceJGZIP4FU5ItqtyoxmbnFZ5fdQ=";
+        fetchSubmodules = true;
+      };
+      cmakeFlags = previousAttrs.cmakeFlags ++ [ (lib.cmakeBool "SLANG_ENABLE_DXIL" false) ];
+    }
+  );
+in
 with python3Packages;
 buildPythonApplication rec {
   pname = "kitty";
-  version = "0.48.2";
+  version = "0.49.1";
   pyproject = false;
 
   src = fetchFromGitHub {
     owner = "kovidgoyal";
     repo = "kitty";
     tag = "v${version}";
-    hash = "sha256-qNgVPpvMm8Y/nbBjVvWVuZ954ZXIuWmXhldP3w8MBhU=";
+    hash = "sha256-YVjTfJnsNEBjcHWQCq2nJBFPvLg7RqQcyWjgR4ijUqc=";
   };
 
   goModules =
     (buildGo126Module {
       pname = "kitty-go-modules";
       inherit src version;
-      vendorHash = "sha256-BZudfNfREwNrgalaimC5Lp+UIdFS+jHFLl9mEXcHYMI=";
+      vendorHash = "sha256-urQMf5lGYPgS65VjGw0pi/ZM6CETtGWfi/kvVDAkIoc=";
     }).goModules;
 
   buildInputs = [
@@ -108,11 +124,13 @@ buildPythonApplication rec {
     sphinx
     furo
     sphinx-copybutton
+    sphinx-design
     sphinxext-opengraph
     sphinx-inline-tabs
     go_1_26
     fontconfig
     makeBinaryWrapper
+    shader-slang'
   ]
   ++ lib.optionals stdenv.hostPlatform.isDarwin [
     imagemagick
@@ -294,6 +312,7 @@ buildPythonApplication rec {
       lib.makeBinPath [
         imagemagick
         ncurses.dev
+        shader-slang'
       ]
     }"