OK, here it is:
screrge-preview.tar.gz.
The Makefile assumes that you have
O'Caml installed and that you have
wget in your path to get the two required libraries. There is no autoconf yet and no documentation. There are many options missing (color, opacity, time stamps, &c.) and the scaling and rotation can be seriously off -- not to mention that you machine migh spontaneously combust

.
You have been warned. Enjoy

.