diff --git a/.gitignore b/.gitignore
index 8ce11a1..f5e2724 100644
--- a/.gitignore
+++ b/.gitignore
@@ -1,5 +1,6 @@
 /.vscode
 /.devcontainer
 /.github
+/.cache
 /build
 /.clang-format
diff --git a/CMakeLists.txt b/CMakeLists.txt
index 796c46f..f0adf5f 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -4,11 +4,23 @@ include(CTest)
 set(CMAKE_CXX_STANDARD 20)
 set(CMAKE_CXX_FLAGS_RELEASE "${CMAKE_CXX_FLAGS_RELEASE} -O2")
 set(CMAKE_CXX_FLAGS_DEBUG "${CMAKE_CXX_FLAGS_DEBUG} -g -fsanitize=address -fsanitize=undefined -fsanitize=leak")
+option(TEST_BPT_ONLY "Only build BPT tests" ON)
 include(FetchContent)
 FetchContent_Declare(
   googletest
-  URL https://github.com/google/googletest/archive/refs/tags/v1.14.0.zip
+  URL_HASH SHA256=1f357c27ca988c3f7c6b4bf68a9395005ac6761f034046e9dde0896e3aba00e4
+  URL ${CMAKE_SOURCE_DIR}/deps/googletest-v1.14.0-mirror.zip
 )
 FetchContent_MakeAvailable(googletest)
 include(GoogleTest)
-enable_testing()
\ No newline at end of file
+FetchContent_Declare(
+  argparse
+  URL_HASH SHA256=674e724c2702f0bfef1619161815257a407e1babce30d908327729fba6ce4124
+  URL ${CMAKE_SOURCE_DIR}/deps/argparse-v3.0-mirror.zip
+)
+FetchContent_MakeAvailable(argparse)
+include_directories(${CMAKE_SOURCE_DIR}/include)
+include_directories(${CMAKE_SOURCE_DIR}/bpt/include)
+include_directories(${CMAKE_SOURCE_DIR}/stlite)
+enable_testing()
+add_subdirectory(test)
\ No newline at end of file
diff --git a/deps/argparse-v3.0-mirror.zip b/deps/argparse-v3.0-mirror.zip
new file mode 100644
index 0000000..9079baf
Binary files /dev/null and b/deps/argparse-v3.0-mirror.zip differ
diff --git a/deps/googletest-v1.14.0-mirror.zip b/deps/googletest-v1.14.0-mirror.zip
new file mode 100644
index 0000000..1b1f703
Binary files /dev/null and b/deps/googletest-v1.14.0-mirror.zip differ
diff --git a/src/main.cpp b/src/main.cpp
new file mode 100644
index 0000000..e69de29
diff --git a/test/CMakeLists.txt b/test/CMakeLists.txt
new file mode 100644
index 0000000..930ffaf
--- /dev/null
+++ b/test/CMakeLists.txt
@@ -0,0 +1,8 @@
+if(TEST_BPT_ONLY)
+  add_executable(code oj_test_interface_for_bpt.cpp)
+  target_link_libraries(code argparse)
+  set_target_properties(code PROPERTIES RUNTIME_OUTPUT_DIRECTORY ${CMAKE_BINARY_DIR})
+else()
+  add_executable(oj_test_interface_for_bpt oj_test_interface_for_bpt.cpp)
+  target_link_libraries(oj_test_interface_for_bpt argparse)
+endif()
\ No newline at end of file
diff --git a/test/oj_test_interface_for_bpt.cpp b/test/oj_test_interface_for_bpt.cpp
new file mode 100644
index 0000000..662973d
--- /dev/null
+++ b/test/oj_test_interface_for_bpt.cpp
@@ -0,0 +1,5 @@
+#include <argparse/argparse.hpp>
+int main()
+{
+  return 0;
+}
\ No newline at end of file