diff --git a/.gitignore b/.gitignore
new file mode 100644
index 0000000..82aa793
--- /dev/null
+++ b/.gitignore
@@ -0,0 +1,3 @@
+.idea
+cmake-build-debug
+cmake-build-release
diff --git a/CMakeLists.txt b/CMakeLists.txt
index 5927210..5d52475 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -4,14 +4,17 @@ project(farbot)
 set(CMAKE_CXX_STANDARD 17)
 find_package(Threads REQUIRED)
 
+add_library(${PROJECT_NAME} INTERFACE)
+target_include_directories(${PROJECT_NAME} INTERFACE include)
+
 # Enable testing
 include(GoogleTest)
 enable_testing()
-set(GTEST_DIR "${CMAKE_SOURCE_DIR}/googletest/googletest")
+set(GTEST_DIR "${PROJECT_SOURCE_DIR}/googletest/googletest")
 
 # Set a default build type if none was specified
 set(default_build_type "Release")
-if(EXISTS "${CMAKE_SOURCE_DIR}/.git")
+if(EXISTS "${PROJECT_SOURCE_DIR}/.git")
   set(default_build_type "Debug")
 endif()
 
@@ -57,10 +60,10 @@ if ("${CMAKE_CXX_COMPILER_ID}" STREQUAL "Clang")
  set(CMAKE_CXX_LINK_FLAGS "${CMAKE_CXX_LINK_FLAGS} -latomic")
 endif()
 
-add_executable(gtestrunner test/test.cpp include/farbot/AsyncCaller.hpp include/farbot/RealtimeTraits.hpp include/farbot/RealtimeObject.hpp include/farbot/detail/RealtimeObject.tcc include/farbot/fifo.hpp include/farbot/detail/fifo.tcc ${GTEST_DIR}/src/gtest_main.cc ${GTEST_DIR}/src/gtest-all.cc)
+add_executable(gtestrunner test/test.cpp ${GTEST_DIR}/src/gtest_main.cc ${GTEST_DIR}/src/gtest-all.cc)
 target_include_directories(gtestrunner PRIVATE include ${GTEST_DIR} ${GTEST_DIR}/include)
-target_link_libraries(gtestrunner Threads::Threads) 
+target_link_libraries(gtestrunner ${PROJECT_NAME} Threads::Threads)
 
 gtest_add_tests(TARGET gtestrunner SOURCES test/test.cpp)
 
-install(DIRECTORY include/farbot DESTINATION ${CMAKE_INSTALL_PREFIX}/include)
+install(DIRECTORY include/${PROJECT_NAME} DESTINATION ${CMAKE_INSTALL_PREFIX}/include)
diff --git a/include/farbot/detail/RealtimeObject.tcc b/include/farbot/detail/RealtimeObject.tcc
index 7ff7495..8914394 100644
--- a/include/farbot/detail/RealtimeObject.tcc
+++ b/include/farbot/detail/RealtimeObject.tcc
@@ -1,5 +1,6 @@
 #pragma once
 
+#include <array>
 #include <cassert>
 
 namespace farbot