diff --git a/.gitignore b/.gitignore
new file mode 100644
index 0000000..4e76f21
--- /dev/null
+++ b/.gitignore
@@ -0,0 +1,4 @@
+desk/*
+!desk/README
+jail/*
+!jail/.gitkeep
diff --git a/desk/README b/desk/README
new file mode 100644
index 0000000..d6199a7
--- /dev/null
+++ b/desk/README
@@ -0,0 +1 @@
+This directory contains student repositories downloaded by kgrader.
diff --git a/jail/.gitkeep b/jail/.gitkeep
new file mode 100644
index 0000000..e69de29
diff --git a/kgrader.rb b/kgrader.rb
new file mode 100755
index 0000000..9ae2a51
--- /dev/null
+++ b/kgrader.rb
@@ -0,0 +1,10 @@
+#! /usr/bin/env ruby
+
+require_relative 'lib/kgrader'
+
+def main
+  cli = KGrader::CLI.new
+  cli.test
+end
+
+main
diff --git a/lib/kgrader.rb b/lib/kgrader.rb
new file mode 100644
index 0000000..863abfc
--- /dev/null
+++ b/lib/kgrader.rb
@@ -0,0 +1 @@
+require_relative 'kgrader/cli'
diff --git a/lib/kgrader/cli.rb b/lib/kgrader/cli.rb
new file mode 100644
index 0000000..1d74564
--- /dev/null
+++ b/lib/kgrader/cli.rb
@@ -0,0 +1,8 @@
+module KGrader
+  class CLI
+
+    def test
+      puts 'Hello, world!'
+    end
+  end
+end