diff a/hat/intellij/example_fft.iml b/hat/intellij/example_fft.iml
--- /dev/null
+++ b/hat/intellij/example_fft.iml
@@ -0,0 +1,15 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<module type="JAVA_MODULE" version="4">
+  <component name="NewModuleRootManager" inherit-compiler-output="true">
+    <exclude-output />
+    <content url="file://$MODULE_DIR$/../examples/fft">
+      <sourceFolder url="file://$MODULE_DIR$/../examples/fft/src/main/java" isTestSource="false" />
+      <sourceFolder url="file://$MODULE_DIR$/../examples/fft/src/main/resources" type="java-resource" />
+    </content>
+    <orderEntry type="inheritedJdk" />
+    <orderEntry type="sourceFolder" forTests="false" />
+    <orderEntry type="module" module-name="core" />
+    <orderEntry type="module" module-name="example_shared" />
+    <orderEntry type="module" module-name="optkl" />
+  </component>
+</module>