diff --git a/.gitignore b/.gitignore
index 1b3e6c0..fb12ca9 100644
--- a/.gitignore
+++ b/.gitignore
@@ -1,4 +1,5 @@
 .claude/
 .grok/
 .idea/
+.vscode/
 build/
diff --git a/CMakeLists.txt b/CMakeLists.txt
deleted file mode 100644
index c4d03b4..0000000
--- a/CMakeLists.txt
+++ /dev/null
@@ -1,16 +0,0 @@
-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)