diff --git a/.ci/build.sh b/.ci/build.sh
index bf23f5d38..5a829646a 100755
--- a/.ci/build.sh
+++ b/.ci/build.sh
@@ -525,6 +525,9 @@ then
 		cmake_flags_extra="$cmake_flags_extra -D MOLTENVK=ON -D \"MOLTENVK_INCLUDE_DIR=$macports\""
 	fi
 
+	# Enable Libserialport 
+		cmake_flags_extra="$cmake_flags_extra -D \"LIBSERIALPORT_ROOT=$macports\""
+
 	# Install dependencies only if we're in a new build and/or MacPorts prefix.
 	if check_buildtag "$(basename "$macports")"
 	then
@@ -622,7 +625,7 @@ else
 	# ...and the ones we do want listed. Non-dev packages fill missing spots on the list.
 	libpkgs=""
 	longest_libpkg=0
-	for pkg in libc6-dev libstdc++6 libopenal-dev libfreetype6-dev libx11-dev libsdl2-dev libpng-dev librtmidi-dev qtdeclarative5-dev libwayland-dev libevdev-dev libxkbcommon-x11-dev libglib2.0-dev libslirp-dev libfaudio-dev libaudio-dev libjack-jackd2-dev libpipewire-0.3-dev libsamplerate0-dev libsndio-dev libvdeplug-dev libfluidsynth-dev libsndfile1-dev
+	for pkg in libc6-dev libstdc++6 libopenal-dev libfreetype6-dev libx11-dev libsdl2-dev libpng-dev librtmidi-dev qtdeclarative5-dev libwayland-dev libevdev-dev libxkbcommon-x11-dev libglib2.0-dev libslirp-dev libfaudio-dev libaudio-dev libjack-jackd2-dev libpipewire-0.3-dev libsamplerate0-dev libsndio-dev libvdeplug-dev libfluidsynth-dev libsndfile1-dev libserialport-dev
 	do
 		libpkgs="$libpkgs $pkg:$arch_deb"
 		length=$(echo -n $pkg | sed 's/-dev$//' | sed "s/qtdeclarative/qt/" | wc -c)
diff --git a/cmake/llvm-macos-aarch64.cmake b/cmake/llvm-macos-aarch64.cmake
index df67ad45b..05f11b6a1 100644
--- a/cmake/llvm-macos-aarch64.cmake
+++ b/cmake/llvm-macos-aarch64.cmake
@@ -18,5 +18,6 @@
 
 string(APPEND CMAKE_C_FLAGS_INIT    " -march=armv8.5-a+simd")
 string(APPEND CMAKE_CXX_FLAGS_INIT  " -march=armv8.5-a+simd")
+string(APPEND )
 
 include(${CMAKE_CURRENT_LIST_DIR}/flags-gcc.cmake)