diff --git a/Makefile b/Makefile
index 6b1e1a1..84bf17a 100644
--- a/Makefile
+++ b/Makefile
@@ -58,6 +58,7 @@ copy-exercise:
 	if [ -f exercises/practice/$(EXERCISE)/src/*.res ]; then \
 		echo "Copying $(EXERCISE)"; \
         	cp exercises/practice/$(EXERCISE)/.meta/*.res $(OUTDIR)/src/; \
+			cp exercises/practice/$(EXERCISE)/.meta/*.resi $(OUTDIR)/src/; \
         	cp exercises/practice/$(EXERCISE)/tests/*.res $(OUTDIR)/tests/; \
 	fi
 
diff --git a/config.json b/config.json
index 1c45156..42c6eb3 100644
--- a/config.json
+++ b/config.json
@@ -26,10 +26,12 @@
       "tests/%{pascal_slug}_test.res"
     ],
     "example": [
-      ".meta/%{pascal_slug}.res"
+      ".meta/%{pascal_slug}.res",
+      ".meta/%{pascal_slug}.resi"
     ],
     "exemplar": [
-      ".meta/src/%{pascal_slug}.res"
+      ".meta/src/%{pascal_slug}.res",
+      ".meta/src/%{pascal_slug}.resi"
     ],
     "editor": [
       "src/%{pascal_slug}.resi"
diff --git a/exercises/practice/hello-world/.meta/HelloWorld.resi b/exercises/practice/hello-world/.meta/HelloWorld.resi
new file mode 100644
index 0000000..1d388cc
--- /dev/null
+++ b/exercises/practice/hello-world/.meta/HelloWorld.resi
@@ -0,0 +1 @@
+let hello: unit => string
diff --git a/exercises/practice/resistor-color-duo/.meta/ResistorColorDuo.resi b/exercises/practice/resistor-color-duo/.meta/ResistorColorDuo.resi
new file mode 100644
index 0000000..6f40876
--- /dev/null
+++ b/exercises/practice/resistor-color-duo/.meta/ResistorColorDuo.resi
@@ -0,0 +1 @@
+let value: (array<string>) => int
diff --git a/exercises/practice/two-fer/.meta/TwoFer.resi b/exercises/practice/two-fer/.meta/TwoFer.resi
new file mode 100644
index 0000000..62f49c2
--- /dev/null
+++ b/exercises/practice/two-fer/.meta/TwoFer.resi
@@ -0,0 +1 @@
+let twoFer: option<string> => string