diff --git a/.gitmodules b/.gitmodules
index 536adc24..95d9088a 100644
--- a/.gitmodules
+++ b/.gitmodules
@@ -897,3 +897,6 @@
 [submodule "repos/Moffenzeef"]
 	path = repos/Moffenzeef
 	url = https://github.com/moffenzeefmodular/VCVrack-submission.git
+[submodule "repos/ArhythmeticUnits-Fourier"]
+	path = repos/ArhythmeticUnits-Fourier
+	url = https://github.com/Kautenja/ArhythmeticUnits-Fourier.git
diff --git a/repos/ArhythmeticUnits-Fourier b/repos/ArhythmeticUnits-Fourier
new file mode 160000
index 00000000..19de25db
--- /dev/null
+++ b/repos/ArhythmeticUnits-Fourier
@@ -0,0 +1 @@
+Subproject commit 19de25db1214cfb8a6eb85d6db08d307a4e2bf70