diff --git a/.gitignore b/.gitignore
index 9f1c26e..735d09d 100644
--- a/.gitignore
+++ b/.gitignore
@@ -34,3 +34,6 @@
 # Tests
 /test/*/bin
 /test/external/
+
+# CMake build folders
+*/build*
diff --git a/CMakeLists.txt b/CMakeLists.txt
new file mode 100644
index 0000000..8d40001
--- /dev/null
+++ b/CMakeLists.txt
@@ -0,0 +1,21 @@
+cmake_minimum_required(VERSION 3.16.0)
+
+project(xtd VERSION 0.1 LANGUAGES CXX)
+
+
+# Define the header-only target
+add_library(xtd INTERFACE)
+target_include_directories(xtd INTERFACE
+    $<BUILD_INTERFACE:${CMAKE_CURRENT_SOURCE_DIR}/include>
+    $<INSTALL_INTERFACE:include>
+)
+
+# Installation instructions
+install(DIRECTORY include/ DESTINATION include)
+
+install(TARGETS xtd EXPORT xtdTargets)
+install(EXPORT xtdTargets
+    FILE xtdConfig.cmake
+    DESTINATION lib/cmake/xtd
+)
+
diff --git a/include/internal/defines.h b/include/xtd/internal/defines.h
similarity index 100%
rename from include/internal/defines.h
rename to include/xtd/internal/defines.h
diff --git a/include/math.h b/include/xtd/math.h
similarity index 100%
rename from include/math.h
rename to include/xtd/math.h
diff --git a/include/math/sin.h b/include/xtd/math/sin.h
similarity index 100%
rename from include/math/sin.h
rename to include/xtd/math/sin.h