Switch to a R7RS layout with csm

rain.sld

@@ -0,0 +1,20 @@
+#!/bin/sh
+#| -*- scheme -*-
+exec csi -s "$0" "$@"
+|#
+(define-library (rain)
+  (import
+   (scheme base)
+   (scheme file)
+   (chicken base)
+   (chicken io)
+   (chicken format)
+   (chicken port)
+   (chicken process-context)
+   (html-parser)
+   (openssl)                            ; has to be before http-client
+   (http-client)
+   (matchable)
+   (srfi-18))
+  (include "rain.scm")
+  (begin (main (command-line-arguments))))