diff --git a/Formula/l-smash-works.rb b/Formula/l-smash-works.rb
new file mode 100644
index 0000000..8f607e9
--- /dev/null
+++ b/Formula/l-smash-works.rb
@@ -0,0 +1,136 @@
+class LSmashWorks < Formula
+  desc "Libav source plugin for VapourSynth"
+  homepage "https://github.com/HomeOfAviSynthPlusEvolution/L-SMASH-Works"
+  url "https://github.com/HomeOfAviSynthPlusEvolution/L-SMASH-Works/archive/refs/tags/1167.0.0.0.tar.gz"
+  sha256 "97bff2bfa0af6a9b6b172dc8945814532237e9f03642c8a31e009aca56e14b1c"
+  license "ISC"
+  head "https://github.com/HomeOfAviSynthPlusEvolution/L-SMASH-Works.git", branch: "master"
+
+  depends_on "cmake" => :build
+  depends_on "gcc" => [:build, :recommended]
+  depends_on "ninja" => :build
+  depends_on "ffmpeg"
+  depends_on "saindriches/vapoursynth/l-smash"
+  depends_on "vapoursynth"
+  depends_on "xxhash"
+
+  fails_with :clang if build.with? "gcc"
+
+  on_arm do
+    depends_on "sse2neon" => :build
+  end
+
+  # SSE2NEON for arm64
+  patch :DATA
+
+  def install
+    args = %w[
+      -DENABLE_DAV1D=OFF
+      -DENABLE_MFX=OFF
+      -DENABLE_XML2S=OFF
+      -DBUILD_AVS_PLUGIN=OFF
+    ]
+
+    system "cmake", "-S", ".", "-B", "build_vs", "-G", "Ninja", *std_cmake_args, *args
+    system "cmake", "--build", "build_vs", "-j#{ENV.make_jobs}"
+    system "cmake", "--install", "build_vs"
+  end
+end
+
+__END__
+diff --git a/AviUtl/colorspace_simd.c b/AviUtl/colorspace_simd.c
+index a20f633..49a7265 100644
+--- a/AviUtl/colorspace_simd.c
++++ b/AviUtl/colorspace_simd.c
+@@ -30,7 +30,11 @@
+ #ifdef __GNUC__
+ #pragma GCC target ("ssse3")
+ #endif
++#if defined(__aarch64__) || defined(__arm64__)
++#include "sse2neon"
++#else
+ #include <tmmintrin.h>
++#endif
+ /* SSSE3 version of func convert_yv12i_to_yuy2 */
+ void LW_FUNC_ALIGN convert_yv12i_to_yuy2_ssse3
+ (
+@@ -207,7 +211,11 @@ void LW_FUNC_ALIGN convert_yv12i_to_yuy2_ssse3
+ #ifdef __GNUC__
+ #pragma GCC target ("sse4.1")
+ #endif
++#if defined(__aarch64__) || defined(__arm64__)
++#include "sse2neon"
++#else
+ #include <smmintrin.h>
++#endif
+
+ /* the inner loop branch should be deleted by forced inline expansion and "bit_depth" constant propagation. */
+ static void LW_FUNC_ALIGN LW_FORCEINLINE convert_yuv420ple_i_to_yuv444p16le_sse41
+diff --git a/AviUtl/lwcolor_simd.c b/AviUtl/lwcolor_simd.c
+index 5fe8d0b..ccf0d20 100644
+--- a/AviUtl/lwcolor_simd.c
++++ b/AviUtl/lwcolor_simd.c
+@@ -36,7 +36,11 @@ typedef unsigned short USHORT;
+ #ifdef __GNUC__
+ #pragma GCC target ("sse4.1")
+ #endif
++#if defined(__aarch64__) || defined(__arm64__)
++#include "sse2neon"
++#else
+ #include <smmintrin.h>
++#endif
+
+ static LW_FORCEINLINE void fill_rgb_buffer_sse41( BYTE *rgb_buffer, BYTE *lw48_ptr )
+ {
+diff --git a/common/lwsimd.c b/common/lwsimd.c
+index 1fc9274..a61eef8 100644
+--- a/common/lwsimd.c
++++ b/common/lwsimd.c
+@@ -20,6 +20,28 @@
+
+ /* This file is available under an ISC license. */
+
++#if defined(__aarch64__) || defined(__arm64__)
++/* Use SSE2NEON */
++int lw_check_sse2()
++{
++    return 1;
++}
++
++int lw_check_ssse3()
++{
++	return 1;
++}
++
++int lw_check_sse41()
++{
++    return 1;
++}
++
++int lw_check_avx2()
++{
++    return 0;
++}
++#else
+ #include <stdint.h>
+
+ #ifdef __GNUC__
+@@ -78,3 +100,4 @@ int lw_check_avx2()
+     }
+     return 0;
+ }
++#endif
+\ No newline at end of file
+diff --git a/common/planar_yuv_sse2.c b/common/planar_yuv_sse2.c
+index 3209557..610f739 100644
+--- a/common/planar_yuv_sse2.c
++++ b/common/planar_yuv_sse2.c
+@@ -1,4 +1,8 @@
++#if defined(__aarch64__) || defined(__arm64__)
++#include "sse2neon"
++#else
+ #include <emmintrin.h>
++#endif
+ #include  <stdint.h>
+
+ static inline __m128i _MM_PACKUS_EPI32(const __m128i* low, const __m128i* high)