diff --git a/CMakeLists.txt b/CMakeLists.txt
index 42eabd9..8e69d6a 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -2,6 +2,14 @@ cmake_minimum_required(VERSION 3.22.0)
 
 set(PROJECT_NAME zecsy)
 
+if(NOT CMAKE_BUILD_TYPE)
+  set(CMAKE_BUILD_TYPE Release)
+endif()
+
+set(CMAKE_CXX_FLAGS "-Wall -Wextra")
+set(CMAKE_CXX_FLAGS_DEBUG "-g")
+set(CMAKE_CXX_FLAGS_RELEASE "-O3")
+
 project(${PROJECT_NAME})
 set(CMAKE_EXPORT_COMPILE_COMMANDS ON)