diff --git a/Sources/CMakeLists.txt b/Sources/CMakeLists.txt
index a0922f3..78226fe 100644
--- a/Sources/CMakeLists.txt
+++ b/Sources/CMakeLists.txt
@@ -9,15 +9,5 @@
 ##
 ##===----------------------------------------------------------------------===##
 
-add_library(Subprocess)
-
 add_subdirectory(_SubprocessCShims)
 add_subdirectory(Subprocess)
-
-target_compile_options(Subprocess PRIVATE
-  "$<$<COMPILE_LANGUAGE:Swift>:SHELL:-enable-experimental-feature StrictConcurrency>"
-  "$<$<COMPILE_LANGUAGE:Swift>:SHELL:-enable-experimental-feature NonescapableTyeps>"
-  "$<$<COMPILE_LANGUAGE:Swift>:SHELL:-enable-experimental-feature LifetimeDependence>"
-  "$<$<COMPILE_LANGUAGE:Swift>:SHELL:-enable-experimental-feature Span>")
-
-target_link_libraries(Subprocess PRIVATE SystemPackage)
diff --git a/Sources/Subprocess/CMakeLists.txt b/Sources/Subprocess/CMakeLists.txt
index ce78541..1142445 100644
--- a/Sources/Subprocess/CMakeLists.txt
+++ b/Sources/Subprocess/CMakeLists.txt
@@ -9,7 +9,7 @@
 ##
 ##===----------------------------------------------------------------------===##
 
-target_sources(Subprocess PRIVATE
+add_library(Subprocess
   Execution.swift
   Buffer.swift
   Error.swift
@@ -24,9 +24,9 @@ target_sources(Subprocess PRIVATE
   SubprocessFoundation/Output+Foundation.swift
   SubprocessFoundation/Input+Foundation.swift
   Configuration.swift)
-
 if(WIN32)
-  target_sources(Subprocess PRIVATE Platforms/Subprocess+Windows.swift)
+  target_sources(Subprocess PRIVATE
+    Platforms/Subprocess+Windows.swift)
 elseif(LINUX OR ANDROID)
   target_sources(Subprocess PRIVATE
     Platforms/Subprocess+Linux.swift
@@ -36,3 +36,13 @@ elseif(APPLE)
     Platforms/Subprocess+Darwin.swift
     Platforms/Subprocess+Unix.swift)
 endif()
+
+target_compile_options(Subprocess PRIVATE
+  "$<$<COMPILE_LANGUAGE:Swift>:SHELL:-enable-experimental-feature StrictConcurrency>"
+  "$<$<COMPILE_LANGUAGE:Swift>:SHELL:-enable-experimental-feature NonescapableTyeps>"
+  "$<$<COMPILE_LANGUAGE:Swift>:SHELL:-enable-experimental-feature LifetimeDependence>"
+  "$<$<COMPILE_LANGUAGE:Swift>:SHELL:-enable-experimental-feature Span>")
+target_link_libraries(Subprocess PUBLIC
+  _SubprocessCShims)
+target_link_libraries(Subprocess PRIVATE
+  SwiftSystem::SystemPackage)
diff --git a/Sources/_SubprocessCShims/CMakeLists.txt b/Sources/_SubprocessCShims/CMakeLists.txt
index 0b5f5e6..131bc8e 100644
--- a/Sources/_SubprocessCShims/CMakeLists.txt
+++ b/Sources/_SubprocessCShims/CMakeLists.txt
@@ -9,7 +9,7 @@
 ##
 ##===----------------------------------------------------------------------===##
 
-target_sources(Subprocess PRIVATE process_shims.c)
-
-target_include_directories(Subprocess PRIVATE
-  "$<BUILD_INTERFACE:${CMAKE_CURRENT_SOURCE_DIR}/include>")
+add_library(_SubprocessCShims STATIC
+  process_shims.c)
+target_include_directories(_SubprocessCShims PUBLIC
+  include)
diff --git a/cmake/modules/InstallExternalDependencies.cmake b/cmake/modules/InstallExternalDependencies.cmake
index fa93247..55596c0 100644
--- a/cmake/modules/InstallExternalDependencies.cmake
+++ b/cmake/modules/InstallExternalDependencies.cmake
@@ -11,17 +11,21 @@
 
 include_guard()
 
-# TODO: Use find_package to find a pre-built SwiftSystem
-
 include(FetchContent)
 
-FetchContent_Declare(SwiftSystem
-  GIT_REPOSITORY https://github.com/apple/swift-system.git
-  GIT_TAG a34201439c74b53f0fd71ef11741af7e7caf01e1 # 1.4.2
-  GIT_SHALLOW YES)
-list(APPEND dependencies SwiftSystem)
-
+find_package(SwiftSystem QUIET)
+if(NOT SwiftSystem_FOUND)
+  message("-- Vendoring swift-system")
+  FetchContent_Declare(SwiftSystem
+    GIT_REPOSITORY https://github.com/apple/swift-system.git
+    GIT_TAG a34201439c74b53f0fd71ef11741af7e7caf01e1 # 1.4.2
+    GIT_SHALLOW YES)
+  list(APPEND VendoredDependencies SwiftSystem)
+endif()
 
-if(dependencies)
-  FetchContent_MakeAvailable(${dependencies})
+if(VendoredDependencies)
+  FetchContent_MakeAvailable(${VendoredDependencies})
+  if(NOT TARGET SwiftSystem::SystemPackage)
+    add_library(SwiftSystem::SystemPackage ALIAS SystemPackage)
+  endif()
 endif()