Ref https://github.com/raspberrypi/rpi-imager/issues/924

diff --git a/src/CMakeLists.txt b/src/CMakeLists.txt
index 247e1d03..3001405a 100644
--- a/src/CMakeLists.txt
+++ b/src/CMakeLists.txt
@@ -155,27 +155,26 @@ set(BUILD_TESTING OFF CACHE BOOL "" FORCE)
 set(BUILD_STATIC_LIBS ON)
 set(BUILD_SHARED_LIBS OFF)
 
-include(FetchContent)
-include(dependencies/fetch-vendor.cmake)
+find_package(PkgConfig REQUIRED)
 
 # Bundled liblzma
-include(dependencies/xz.cmake)
+pkg_check_modules(LibLZMA REQUIRED IMPORTED_TARGET liblzma)
 
 # Bundled zstd
-include(dependencies/zstd.cmake)
+pkg_check_modules(ZSTD REQUIRED IMPORTED_TARGET libzstd)
 
 # Remote nghttp2
-include(dependencies/nghttp2.cmake)
+pkg_check_modules(NGHTTP2 REQUIRED IMPORTED_TARGET libnghttp2)
 
 # Bundled yescrypt
 include(dependencies/yescrypt.cmake)
 
 
 # Bundled zlib
-include(dependencies/zlib.cmake)
+pkg_check_modules(ZLIB REQUIRED IMPORTED_TARGET zlib)
 
 # Bundled libarchive
-include(dependencies/libarchive.cmake)
+pkg_check_modules(LibArchive REQUIRED IMPORTED_TARGET libarchive)
 
 # libcurl
 if(APPLE)
@@ -189,12 +188,12 @@ if(APPLE)
     # Note: No need to find OpenSSL on macOS - we use native Security.framework
     # for RSA operations and CommonCrypto for hashing
 else()
-    include(dependencies/curl.cmake)
+    pkg_check_modules(CURL REQUIRED IMPORTED_TARGET libcurl)
 endif()
 
 
 # Bundled libusb (for rpiboot Compute Module support)
-include(dependencies/libusb.cmake)
+pkg_check_modules(LIBUSB REQUIRED IMPORTED_TARGET libusb-1.0)
 
 # Add dependencies
 if (APPLE)
@@ -540,12 +539,12 @@ else()
     include(linux/PlatformPackaging.cmake)
 endif()
 
-add_dependencies(${PROJECT_NAME} zlibstatic yescrypt usb-1.0-static)
-include_directories(${CURL_INCLUDE_DIR} ${LibArchive_INCLUDE_DIR} ${LIBLZMA_INCLUDE_DIRS} ${LIBDRM_INCLUDE_DIRS} ${ZLIB_INCLUDE_DIRS} ${ZSTD_INCLUDE_DIR} ${YESCRYPT_INCLUDE_DIR} ${LIBUSB_INCLUDE_DIR})
+add_dependencies(${PROJECT_NAME} yescrypt)
+include_directories(${LIBDRM_INCLUDE_DIRS} ${YESCRYPT_INCLUDE_DIR})
 
 # Link different Qt components based on build type
 # rpiboot link libraries (libusb)
-set(RPIBOOT_LIBS ${LIBUSB_LIBRARIES})
+set(RPIBOOT_LIBS PkgConfig::LIBUSB)
 
 if(BUILD_CLI_ONLY)
     # CLI-only build: link Core, Network and essential libraries
@@ -555,7 +554,7 @@ else()
     # DBus on Linux for suspend inhibitor, portal file dialogs and URI handler;
     # excluded for embedded (no session bus on the netboot image).
     if(UNIX AND NOT APPLE AND NOT BUILD_EMBEDDED)
-        target_link_libraries(${PROJECT_NAME} PRIVATE ${QT}::Core ${QT}::Gui ${QT}::Quick ${QT}::Svg ${QT}::Network ${QT}::DBus ${CURL_LIBRARIES} ${LibArchive_LIBRARIES} ${ZSTD_LIBRARIES} ${LIBLZMA_LIBRARIES} ${ZLIB_LIBRARIES} ${YESCRYPT_LIBRARIES} ${LIBDRM_LIBRARIES} ${ATOMIC_LIBRARY} ${RPIBOOT_LIBS} ${EXTRALIBS})
+        target_link_libraries(${PROJECT_NAME} PRIVATE ${QT}::Core ${QT}::Gui ${QT}::Quick ${QT}::Svg ${QT}::Network ${QT}::DBus PkgConfig::CURL PkgConfig::LibArchive PkgConfig::ZSTD PkgConfig::LibLZMA PkgConfig::ZLIB ${YESCRYPT_LIBRARIES} ${LIBDRM_LIBRARIES} ${ATOMIC_LIBRARY} ${RPIBOOT_LIBS} ${EXTRALIBS})
     else()
         target_link_libraries(${PROJECT_NAME} PRIVATE ${QT}::Core ${QT}::Gui ${QT}::Quick ${QT}::Svg ${QT}::Network ${CURL_LIBRARIES} ${LibArchive_LIBRARIES} ${ZSTD_LIBRARIES} ${LIBLZMA_LIBRARIES} ${ZLIB_LIBRARIES} ${YESCRYPT_LIBRARIES} ${LIBDRM_LIBRARIES} ${ATOMIC_LIBRARY} ${RPIBOOT_LIBS} ${EXTRALIBS})
     endif()