diff --git a/README.org b/README.org
new file mode 100644
index 0000000..e2dd323
--- /dev/null
+++ b/README.org
@@ -0,0 +1,13 @@
+* The Cult of the Bound Variables
+
+Solutions to the [[http://www.boundvariable.org/task.shtml][2006 ICFP Programming Contest]].
+
+** Universal Machine
+
+The Universal Machine is implemented in [[um.c]]. Compile it with =make=
+and run it on a UM program:
+
+#+begin_src sh
+  ./um sandmark.umz # benchmark
+  ./um codex.umz
+#+end_src