diff --git a/.idea/misc.xml b/.idea/misc.xml
new file mode 100644
index 0000000..0b76fe5
--- /dev/null
+++ b/.idea/misc.xml
@@ -0,0 +1,7 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<project version="4">
+  <component name="CMakePythonSetting">
+    <option name="pythonIntegrationState" value="YES" />
+  </component>
+  <component name="CMakeWorkspace" PROJECT_DIR="$PROJECT_DIR$" />
+</project>
\ No newline at end of file
diff --git a/.idea/tyche.iml b/.idea/tyche.iml
index bc2cd87..f08604b 100644
--- a/.idea/tyche.iml
+++ b/.idea/tyche.iml
@@ -1,8 +1,2 @@
 <?xml version="1.0" encoding="UTF-8"?>
-<module type="CPP_MODULE" version="4">
-  <component name="NewModuleRootManager">
-    <content url="file://$MODULE_DIR$" />
-    <orderEntry type="inheritedJdk" />
-    <orderEntry type="sourceFolder" forTests="false" />
-  </component>
-</module>
\ No newline at end of file
+<module classpath="CMake" type="CPP_MODULE" version="4" />
\ No newline at end of file
diff --git a/CMakeLists.txt b/CMakeLists.txt
new file mode 100644
index 0000000..2fac843
--- /dev/null
+++ b/CMakeLists.txt
@@ -0,0 +1,92 @@
+cmake_minimum_required (VERSION 3.24)
+
+project(tyche
+        VERSION 0.0.1
+        DESCRIPTION "An embeddable/standalone programming language"
+        LANGUAGES C CXX ASM)
+
+#
+# project options / configuration
+#
+
+set(CMAKE_C_STANDARD 17)
+set(CMAKE_CXX_STANDARD 23 CACHE STRING "C++ Standard")
+set(CMAKE_CXX_STANDARD_REQUIRED ON)
+set_property(GLOBAL PROPERTY CXX_EXTENSIONS OFF)
+set_property(GLOBAL PROPERTY INTERPROCEDURAL_OPTIMIZATION TRUE)
+set_property(GLOBAL PROPERTY LINK_WHAT_YOU_USE TRUE)
+
+# warnings / flags
+if(CMAKE_BUILD_TYPE STREQUAL "Debug")
+    set(warnings -Wall -Wextra -Wformat-nonliteral -Wundef -Wshadow -Wwrite-strings -Wfloat-equal -Wswitch-default -Wmissing-format-attribute -Wswitch-enum -Wmissing-noreturn -Wno-unused-parameter -Wno-unused)
+    if (CMAKE_CXX_COMPILER_ID STREQUAL "GNU")
+        set(warnings ${warnings} -Wsuggest-attribute=pure -Wsuggest-attribute=const -Wsuggest-attribute=noreturn -Wsuggest-attribute=malloc -Wsuggest-attribute=format -Wsuggest-attribute=cold)
+    endif()
+endif()
+
+# try to use ccache, if available
+find_program(CCACHE_PROGRAM ccache)
+if(CCACHE_PROGRAM)
+    set(CMAKE_CXX_COMPILER_LAUNCHER "${CCACHE_PROGRAM}")
+endif()
+
+# ignore warnings in imported files
+set_source_files_properties(${IMGUI_SRC} PROPERTIES COMPILE_FLAGS "-w")
+
+if(CMAKE_BUILD_TYPE STREQUAL "Debug")
+    add_compile_options(-ggdb -O0)
+endif()
+
+if(CMAKE_BUILD_TYPE STREQUAL "Release")
+    set(DEF B_PRODUCTION_MODE=ON)
+    add_compile_options(-Ofast -flto)
+endif()
+
+#
+# libraries
+#
+
+include(FetchContent)
+FetchContent_Declare(
+        googletest
+        # Specify the commit you depend on and update it regularly.
+        URL https://github.com/google/googletest/releases/download/v1.17.0/googletest-1.17.0.tar.gz
+)
+FetchContent_MakeAvailable(googletest)
+
+#
+# library
+#
+
+add_library(lib${PROJECT_NAME} STATIC
+    src/bytecode/bytearray.hh
+    src/bytecode/bytearray.cc
+)
+
+target_compile_options(lib${PROJECT_NAME} PRIVATE ${warnings})
+
+#
+# tests
+#
+
+add_executable(${PROJECT_NAME}-bytecode-test src/bytecode/tests.cc)
+target_link_libraries(${PROJECT_NAME}-bytecode-test lib${PROJECT_NAME} gtest_main)
+add_test(NAME tyche_bytecode_test COMMAND ${PROJECT_NAME}-bytecode-test)
+
+#
+# check for leaks
+#
+
+add_custom_target(leaks)
+add_custom_command(TARGET leaks
+        POST_BUILD
+        COMMENT "Check for leaks using valgrind."
+        WORKING_DIRECTORY ${CMAKE_BINARY_DIR}
+        COMMAND valgrind --leak-check=full --show-leak-kinds=all --track-origins=yes --suppressions=${CMAKE_SOURCE_DIR}/valgrind.supp ./${PROJECT_NAME}
+)
+
+#
+# installation
+#
+
+install(TARGETS lib${CMAKE_PROJECT_NAME} RUNTIME DESTINATION lib)
\ No newline at end of file
diff --git a/TODO.md b/TODO.md
index 3581679..16ab05f 100644
--- a/TODO.md
+++ b/TODO.md
@@ -1,4 +1,4 @@
-## Chunk
+## Bytecode
 
 - [ ] Byte array
   - Auto-expand
diff --git a/doc/OPCODES b/doc/OPCODES
index 76b3f1e..6476112 100644
--- a/doc/OPCODES
+++ b/doc/OPCODES
@@ -67,15 +67,15 @@ Other value operations: (0x80~0x8f)
 
 External code: (0x90~0x9f)
    cmpl                 Compile code to assembly
-   asmbl                Assemble code to chunk format
-   load                 Load chunk as function (will place function on stack)
+   asmbl                Assemble code to bytecode format
+   load                 Load bytecode as function (will place function on stack)
 
 Error handling: (0xa0~0xaf)
    ???
 
 
-Chunk format
-------------
+Bytecode format
+---------------
 
 The bytecode file is composed of the following sections:
 
diff --git a/src/bytecode/bytearray.cc b/src/bytecode/bytearray.cc
new file mode 100644
index 0000000..c29cc85
--- /dev/null
+++ b/src/bytecode/bytearray.cc
@@ -0,0 +1 @@
+#include "bytearray.hh"
diff --git a/src/bytecode/bytearray.hh b/src/bytecode/bytearray.hh
new file mode 100644
index 0000000..a9e0778
--- /dev/null
+++ b/src/bytecode/bytearray.hh
@@ -0,0 +1,8 @@
+#ifndef TYCHE_BYTEARRAY_HH
+#define TYCHE_BYTEARRAY_HH
+
+class ByteArray {
+
+};
+
+#endif //TYCHE_BYTEARRAY_HH
diff --git a/src/bytecode/tests.cc b/src/bytecode/tests.cc
new file mode 100644
index 0000000..8bb1668
--- /dev/null
+++ b/src/bytecode/tests.cc
@@ -0,0 +1,12 @@
+#include "gtest/gtest.h"
+
+TEST(test, test)
+{
+    ASSERT_EQ(1, 1);
+}
+
+int main(int argc, char** argv)
+{
+    testing::InitGoogleTest(&argc, argv);
+    return RUN_ALL_TESTS();
+}
\ No newline at end of file