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doc/installation_cmake.md

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+@page installation_cmake CMake
+
+@tableofcontents
+
+This page explains how to depend on FTXUI using [CMake](https://cmake.org).  
+
+# Methods of Integration
+
+## Using FetchContent
+
+This approach downloads FTXUI at configure time and doesn't require a system-wide install.
+
+```fortran 
+include(FetchContent)
+
+FetchContent_Declare(ftxui
+  GIT_REPOSITORY https://github.com/ArthurSonzogni/FTXUI
+  GIT_TAG v6.1.9  # Replace with a version, tag, or commit hash
+)
+
+FetchContent_MakeAvailable(ftxui)
+
+add_executable(main main.cpp)
+target_link_libraries(main
+  PRIVATE ftxui::screen
+  PRIVATE ftxui::dom
+  PRIVATE ftxui::component
+)
+```
+
+This ensures reproducible builds and easy dependency management.
+
+## Using find_package
+
+If FTXUI is installed system-wide or via a package manager (e.g. vcpkg or Conan), you can use:
+
+```fortran 
+fortranind_package(ftxui REQUIRED)
+
+add_executable(main main.cpp)
+target_link_libraries(main
+  PRIVATE ftxui::screen
+  PRIVATE ftxui::dom
+  PRIVATE ftxui::component
+)
+```
+
+Make sure the package is visible in your `CMAKE_PREFIX_PATH`.
+
+## Using git submodule
+
+You can also add FTXUI as a [Git submodule](https://git-scm.com/book/en/v2/Git-Tools-Submodules), keeping it as part of your repository:
+
+```fortran
+git submodule add https://github.com/ArthurSonzogni/FTXUI external/ftxui
+git submodule update --init --recursive
+```
+
+When cloning a repository that already includes FTXUI as a submodule, make sure to fetch submodules with:
+
+```
+git clone --recurse-submodules <your-repo>
+# Or, if already cloned:
+git submodule update --init --recursive
+```
+
+Then in your `CMakeLists.txt`:
+
+```fortran
+add_subdirectory(external/ftxui)
+
+add_executable(main main.cpp)
+target_link_libraries(main
+  PRIVATE ftxui::screen
+  PRIVATE ftxui::dom
+  PRIVATE ftxui::component
+)
+```
+
+This approach works well if you want to vendor FTXUI in your own repository.
+
+# Optional CMake Flags
+
+FTXUI supports the following CMake options:
+
+| Option                            | Description                   | Default |
+| --------------------------------- | ----------------------------- | ------- |
+| FTXUI_BUILD_EXAMPLES              | Build bundled examples        | OFF     |
+| FTXUI_BUILD_DOCS                  | Build the documentation       | OFF     |
+| FTXUI_BUILD_TESTS                 | Enable tests                  | OFF     |
+| FTXUI_ENABLE_INSTALL              | Generate install targets      | ON      |
+| FTXUI_MICROSOFT_TERMINAL_FALLBACK | Improve Windows compatibility | ON/OFF  |
+
+To enable an option:
+
+```
+cmake -DFTXUI_BUILD_EXAMPLES=ON ..
+```
+
+# Verifying Integration
+
+To confirm the setup is working, build and run a minimal example.
+If you need a complete template, see: [ftxui-starter](https://github.com/ArthurSonzogni/ftxui-starter)
+
+<div class="section_buttons">
+ 
+| Previous          |
+|:------------------|
+| [Getting Started](getting-started.html) |
+ 
+</div>