diff --git a/.gitmodules b/.gitmodules
index bfb24c5..5609171 100644
--- a/.gitmodules
+++ b/.gitmodules
@@ -8,3 +8,6 @@
 	path = deps/cpptoml
 	url = https://github.com/skystrife/cpptoml
 
+[submodule "deps/handmademath"]
+	path = deps/handmademath
+	url = https://github.com/StrangeZak/Handmade-Math
diff --git a/CMakeLists.txt b/CMakeLists.txt
index 4c3ddb2..ad5c3d2 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -22,6 +22,7 @@ target_link_libraries(gl3w dl)
 
 include_directories(deps/cpptoml/include)
 include_directories(deps/inotify)
+include_directories(deps/handmademath)
 
 include_directories(${PROJECT_SOURCE_DIR})
 add_executable(zinnia src/main.cpp src/gui.cpp src/project.cpp
diff --git a/deps/handmademath b/deps/handmademath
new file mode 160000
index 0000000..afd726a
--- /dev/null
+++ b/deps/handmademath
@@ -0,0 +1 @@
+Subproject commit afd726ab0bb9747d596fb9846cb560210298cbb3