file structure and hello world program

CMakeLists.txt

@@ -0,0 +1,25 @@
+
+cmake_minimum_required(VERSION 3.10)
+
+project(maiden)
+
+set(CMAKE_CXX_STANDARD 20)
+set(CMAKE_CXX_STANDARD_REQUIRED ON)
+
+set(CMAKE_INSTALL_PREFIX ${PROJECT_SOURCE_DIR})
+
+# add_subdirectory() to nest CMakeLists
+
+add_executable(maiden
+    src/main.cpp
+    # include extra source files here
+)
+
+target_include_directories(maiden PRIVATE
+    "${CMAKE_CURRENT_SOURCE_DIR}/src"
+    # add additional include directories here
+)
+
+target_link_libraries(maiden PRIVATE
+    # add libraries here
+)