diff --git a/.gitmodules b/.gitmodules
index df3b751b4fe..1c99ee61859 100644
--- a/.gitmodules
+++ b/.gitmodules
@@ -2,3 +2,6 @@
 	path = experiments/kotlin-ir
 	url = git@github.com:JetBrains/kotlin.git
 	branch = rr/pdn_ir_prototype
+[submodule "experiments/kni"]
+	path = experiments/kni
+	url = https://github.com/SvyatoslavScherbina/kni
diff --git a/experiments/kni b/experiments/kni
new file mode 160000
index 00000000000..43de50dc75a
--- /dev/null
+++ b/experiments/kni
@@ -0,0 +1 @@
+Subproject commit 43de50dc75acb5cf14f46572c43d87116b25937b