diff --git a/.gitignore b/.gitignore
index 86318a6..66814f2 100644
--- a/.gitignore
+++ b/.gitignore
@@ -52,4 +52,11 @@ release/
 build/
 .idea
 cmake-build-debug/
-packaging/
+
+# Arch package outputs
+packaging/arch/pkg/
+packaging/arch/src/
+packaging/arch/*.tar.gz
+packaging/arch/*.src.tar.*
+packaging/arch/*.pkg.tar.*
+packaging/arch/*.log
diff --git a/CMakeLists.txt b/CMakeLists.txt
index 7349978..c4f4718 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -13,6 +13,15 @@ include(QEmbyPlatformDeps)
 set(QEMBY_RUNTIME_LIB_SUBDIR "qemby" CACHE STRING
     "Subdirectory under the install libdir for bundled private runtime libraries")
 
+option(QEMBY_USE_SYSTEM_DEPS
+    "Prefer system packages for third-party dependencies" ON)
+option(QEMBY_FETCHCONTENT_FALLBACK
+    "Allow FetchContent fallback when a system dependency is missing" ON)
+option(QEMBY_NATIVE_OPTIMIZE
+    "Build qEmby targets with -march=native -mtune=native in optimized configs" OFF)
+option(QEMBY_ENABLE_IPO
+    "Enable interprocedural optimization/LTO for qEmby targets" OFF)
+
 set(CMAKE_RUNTIME_OUTPUT_DIRECTORY "${CMAKE_BINARY_DIR}/bin")
 set(CMAKE_LIBRARY_OUTPUT_DIRECTORY "${CMAKE_BINARY_DIR}/bin")
 set(CMAKE_ARCHIVE_OUTPUT_DIRECTORY "${CMAKE_BINARY_DIR}/lib")
@@ -30,6 +39,46 @@ if(MSVC)
     add_compile_options(/MP)
 endif()
 
+if(NOT QEMBY_USE_SYSTEM_DEPS AND NOT QEMBY_FETCHCONTENT_FALLBACK)
+    message(FATAL_ERROR
+        "At least one dependency source must be enabled: "
+        "QEMBY_USE_SYSTEM_DEPS or QEMBY_FETCHCONTENT_FALLBACK")
+endif()
+
+add_library(qemby_build_options INTERFACE)
+
+if(QEMBY_NATIVE_OPTIMIZE AND CMAKE_CXX_COMPILER_ID MATCHES "GNU|Clang")
+    target_compile_options(qemby_build_options INTERFACE
+        "$<$<CONFIG:Release>:-march=native>"
+        "$<$<CONFIG:Release>:-mtune=native>"
+        "$<$<CONFIG:RelWithDebInfo>:-march=native>"
+        "$<$<CONFIG:RelWithDebInfo>:-mtune=native>"
+    )
+endif()
+
+set(_qemby_ipo_supported FALSE)
+if(QEMBY_ENABLE_IPO)
+    include(CheckIPOSupported)
+    check_ipo_supported(RESULT _qemby_ipo_supported
+        OUTPUT _qemby_ipo_error
+        LANGUAGES CXX)
+    if(NOT _qemby_ipo_supported)
+        message(WARNING
+            "IPO/LTO was requested but is not supported: ${_qemby_ipo_error}")
+    endif()
+endif()
+
+function(qemby_apply_build_options target)
+    if(TARGET qemby_build_options)
+        target_link_libraries("${target}" PRIVATE qemby_build_options)
+    endif()
+
+    if(QEMBY_ENABLE_IPO AND _qemby_ipo_supported)
+        set_target_properties("${target}" PROPERTIES
+            INTERPROCEDURAL_OPTIMIZATION TRUE)
+    endif()
+endfunction()
+
 # ==========================================
 # 允许通过缓存变量或环境变量提供 Qt 安装路径
 # Windows 未显式指定时仍会尝试兼容现有本地默认路径
@@ -68,37 +117,67 @@ endfunction()
 
 set(_qemby_saved_skip_install_rules ${CMAKE_SKIP_INSTALL_RULES})
 set(CMAKE_SKIP_INSTALL_RULES ON)
-FetchContent_Declare(
-    QCoro
-    GIT_REPOSITORY https://github.com/danvratil/qcoro.git
-    GIT_TAG v0.10.0
-)
+if(QEMBY_USE_SYSTEM_DEPS)
+    find_package(QCoro6 CONFIG QUIET COMPONENTS Core Network)
+endif()
 
-# 强制 QCoro 使用 Qt6 进行编译，并关闭不必要的测试与示例构建以加快编译速度
-set(QCORO_QT_MAJOR_VERSION 6 CACHE STRING "Use Qt6 for QCoro" FORCE)
-set(QCORO_BUILD_EXAMPLES OFF CACHE BOOL "Disable QCoro examples" FORCE)
-set(QCORO_WITH_QML OFF CACHE BOOL "Disable QCoro QML module" FORCE)
-set(QCORO_WITH_QTQUICK OFF CACHE BOOL "Disable QCoro QtQuick module" FORCE)
-set(BUILD_TESTING OFF CACHE BOOL "Disable QCoro tests" FORCE)
+if(QCoro6_FOUND)
+    message(STATUS "Using system QCoro6")
+else()
+    if(NOT QEMBY_FETCHCONTENT_FALLBACK)
+        message(FATAL_ERROR
+            "QCoro6 was not found. Install the system package or enable "
+            "QEMBY_FETCHCONTENT_FALLBACK.")
+    endif()
 
-FetchContent_MakeAvailable(QCoro)
-FetchContent_GetProperties(QCoro)
-qemby_ensure_noop_install_script("${qcoro_BINARY_DIR}")
+    message(STATUS "System QCoro6 not found; fetching bundled QCoro")
+    FetchContent_Declare(
+        QCoro
+        GIT_REPOSITORY https://github.com/danvratil/qcoro.git
+        GIT_TAG v0.10.0
+    )
+
+    # 强制 QCoro 使用 Qt6 进行编译，并关闭不必要的测试与示例构建以加快编译速度
+    set(QCORO_QT_MAJOR_VERSION 6 CACHE STRING "Use Qt6 for QCoro" FORCE)
+    set(QCORO_BUILD_EXAMPLES OFF CACHE BOOL "Disable QCoro examples" FORCE)
+    set(QCORO_WITH_QML OFF CACHE BOOL "Disable QCoro QML module" FORCE)
+    set(QCORO_WITH_QTQUICK OFF CACHE BOOL "Disable QCoro QtQuick module" FORCE)
+    set(BUILD_TESTING OFF CACHE BOOL "Disable QCoro tests" FORCE)
+
+    FetchContent_MakeAvailable(QCoro)
+    FetchContent_GetProperties(QCoro)
+    qemby_ensure_noop_install_script("${qcoro_BINARY_DIR}")
+endif()
 
 # ==========================================
 # 引入 spdlog (高性能线程安全日志库, MIT License)
 # ==========================================
-FetchContent_Declare(
-    spdlog
-    GIT_REPOSITORY https://github.com/gabime/spdlog.git
-    GIT_TAG v1.15.3
-)
-set(SPDLOG_BUILD_EXAMPLE OFF CACHE BOOL "Disable spdlog examples" FORCE)
-set(SPDLOG_BUILD_TESTS OFF CACHE BOOL "Disable spdlog tests" FORCE)
-set(SPDLOG_INSTALL OFF CACHE BOOL "Disable spdlog install rules" FORCE)
-FetchContent_MakeAvailable(spdlog)
-FetchContent_GetProperties(spdlog)
-qemby_ensure_noop_install_script("${spdlog_BINARY_DIR}")
+if(QEMBY_USE_SYSTEM_DEPS)
+    find_package(spdlog CONFIG QUIET)
+endif()
+
+if(spdlog_FOUND)
+    message(STATUS "Using system spdlog")
+else()
+    if(NOT QEMBY_FETCHCONTENT_FALLBACK)
+        message(FATAL_ERROR
+            "spdlog was not found. Install the system package or enable "
+            "QEMBY_FETCHCONTENT_FALLBACK.")
+    endif()
+
+    message(STATUS "System spdlog not found; fetching bundled spdlog")
+    FetchContent_Declare(
+        spdlog
+        GIT_REPOSITORY https://github.com/gabime/spdlog.git
+        GIT_TAG v1.15.3
+    )
+    set(SPDLOG_BUILD_EXAMPLE OFF CACHE BOOL "Disable spdlog examples" FORCE)
+    set(SPDLOG_BUILD_TESTS OFF CACHE BOOL "Disable spdlog tests" FORCE)
+    set(SPDLOG_INSTALL OFF CACHE BOOL "Disable spdlog install rules" FORCE)
+    FetchContent_MakeAvailable(spdlog)
+    FetchContent_GetProperties(spdlog)
+    qemby_ensure_noop_install_script("${spdlog_BINARY_DIR}")
+endif()
 set(CMAKE_SKIP_INSTALL_RULES ${_qemby_saved_skip_install_rules})
 unset(_qemby_saved_skip_install_rules)
 # ==========================================
diff --git a/packaging/arch/.SRCINFO b/packaging/arch/.SRCINFO
new file mode 100644
index 0000000..fd8794a
--- /dev/null
+++ b/packaging/arch/.SRCINFO
@@ -0,0 +1,23 @@
+pkgbase = qemby
+	pkgdesc = Desktop client for Emby and Jellyfin media servers
+	pkgver = 0.0.5
+	pkgrel = 1
+	url = https://github.com/AlanHJ/qEmby
+	arch = x86_64
+	license = MIT
+	makedepends = cmake
+	makedepends = ninja
+	makedepends = pkgconf
+	makedepends = qt6-tools
+	depends = gcc-libs
+	depends = glibc
+	depends = mpv
+	depends = qcoro
+	depends = qt6-base
+	depends = qt6-svg
+	depends = qt6-websockets
+	depends = spdlog
+	source = qemby-0.0.5.tar.gz::https://github.com/AlanHJ/qEmby/archive/refs/tags/v0.0.5.tar.gz
+	sha256sums = SKIP
+
+pkgname = qemby
diff --git a/packaging/arch/PKGBUILD b/packaging/arch/PKGBUILD
new file mode 100644
index 0000000..dbed1c1
--- /dev/null
+++ b/packaging/arch/PKGBUILD
@@ -0,0 +1,46 @@
+# Maintainer: local
+
+pkgname=qemby
+pkgver=0.0.5
+pkgrel=1
+pkgdesc="Desktop client for Emby and Jellyfin media servers"
+arch=('x86_64')
+url="https://github.com/AlanHJ/qEmby"
+license=('MIT')
+depends=(
+  'gcc-libs'
+  'glibc'
+  'mpv'
+  'qcoro'
+  'qt6-base'
+  'qt6-svg'
+  'qt6-websockets'
+  'spdlog'
+)
+makedepends=(
+  'cmake'
+  'ninja'
+  'pkgconf'
+  'qt6-tools'
+)
+source=("${pkgname}-${pkgver}.tar.gz::${url}/archive/refs/tags/v${pkgver}.tar.gz")
+sha256sums=('SKIP')
+
+build() {
+  cmake -S "${srcdir}/qEmby-${pkgver}" -B "${srcdir}/build" -G Ninja \
+    -DCMAKE_BUILD_TYPE=None \
+    -DCMAKE_INSTALL_PREFIX=/usr \
+    -DCMAKE_INSTALL_LIBDIR=lib \
+    -DQEMBY_USE_SYSTEM_DEPS=ON \
+    -DQEMBY_FETCHCONTENT_FALLBACK=OFF \
+    -DFETCHCONTENT_FULLY_DISCONNECTED=ON \
+    -DQEMBY_NATIVE_OPTIMIZE=OFF \
+    -DQEMBY_ENABLE_IPO=OFF
+  cmake --build "${srcdir}/build"
+}
+
+package() {
+  DESTDIR="${pkgdir}" cmake --install "${srcdir}/build" --prefix /usr
+  install -Dm644 "${srcdir}/qEmby-${pkgver}/LICENSE" \
+    "${pkgdir}/usr/share/licenses/${pkgname}/LICENSE"
+}
diff --git a/packaging/arch/README.md b/packaging/arch/README.md
new file mode 100644
index 0000000..d190d62
--- /dev/null
+++ b/packaging/arch/README.md
@@ -0,0 +1,36 @@
+# Arch package
+
+This PKGBUILD is intended for Arch Linux and AUR-style release packaging. It
+builds from the project release tag, uses Arch system libraries, and disables
+FetchContent so package builds do not download dependencies during CMake
+configure.
+
+Before publishing a release package, replace the temporary `SKIP` checksum in
+`PKGBUILD` with a real checksum, for example by running `updpkgsums` after the
+tag archive is available.
+
+## Build
+
+```fish
+cd packaging/arch
+makepkg -f
+```
+
+## Install
+
+```fish
+cd packaging/arch
+sudo pacman -U qemby-*.pkg.tar.zst
+```
+
+## Run
+
+```fish
+qemby
+```
+
+## Uninstall
+
+```fish
+sudo pacman -R qemby
+```
diff --git a/src/qEmbyApp/CMakeLists.txt b/src/qEmbyApp/CMakeLists.txt
index 97ac629..ebadd14 100644
--- a/src/qEmbyApp/CMakeLists.txt
+++ b/src/qEmbyApp/CMakeLists.txt
@@ -83,6 +83,10 @@ target_link_libraries(qEmbyApp PRIVATE
 )
 target_link_libraries(qEmbyApp PRIVATE Qt${QT_VERSION_MAJOR}::Core)
 
+if(COMMAND qemby_apply_build_options)
+    qemby_apply_build_options(qEmbyApp)
+endif()
+
 if(APPLE)
     target_link_libraries(qEmbyApp PRIVATE
         "-framework CoreFoundation"
diff --git a/src/qEmbyCore/CMakeLists.txt b/src/qEmbyCore/CMakeLists.txt
index 2fe549c..7f71278 100644
--- a/src/qEmbyCore/CMakeLists.txt
+++ b/src/qEmbyCore/CMakeLists.txt
@@ -23,6 +23,10 @@ target_link_libraries(qEmbyCore PUBLIC Qt${QT_VERSION_MAJOR}::Gui
 
 target_compile_definitions(qEmbyCore PRIVATE QEMBYCORE_LIBRARY)
 
+if(COMMAND qemby_apply_build_options)
+    qemby_apply_build_options(qEmbyCore)
+endif()
+
 include(GNUInstallDirs)
 
 set(_qemby_core_library_install_dir "${CMAKE_INSTALL_LIBDIR}")