diff --git a/tools/deploy b/tools/deploy
new file mode 100755
index 0000000..f5b8164
--- /dev/null
+++ b/tools/deploy
@@ -0,0 +1,27 @@
+#!/usr/bin/env bash
+
+## functions
+
+function syntaxerror
+{
+	echo "SYNTAX: deploy <target-sys> <target-dir>" > /dev/stderr
+	exit 1
+}
+
+
+## args
+
+if [ $# -ge 1 ] ; then target_sys=$1 && shift ; else syntaxerror ; fi
+if [ $# -ge 1 ] ; then target_dir=$1 && shift ; else syntaxerror ; fi
+
+
+## exec
+
+rsync \
+	--rsh=ssh \
+	--recursive \
+	--update \
+	--delete \
+	--exclude="conf.json" \
+	build/ \
+	${target_sys}:${target_dir}