diff --git a/CMakeLists.txt b/CMakeLists.txt
new file mode 100644
index 0000000..c4d03b4
--- /dev/null
+++ b/CMakeLists.txt
@@ -0,0 +1,16 @@
+cmake_minimum_required(VERSION 4.1)
+project(cnotes C)
+
+# Force strict C90/ANSI compliance
+set(CMAKE_C_STANDARD 90)
+set(CMAKE_C_STANDARD_REQUIRED ON)
+set(CMAKE_C_EXTENSIONS OFF)
+
+# Strict warning flags to match Makefile
+set(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} -ansi -Wpedantic -Wall -Wextra")
+
+include_directories(include)
+
+# Separate executables (not a single combined binary)
+add_executable(cnadd src/cnadd.c)
+add_executable(cndump src/cndump.c)