The next release of GNU Smalltalk will include support for Seaside. This blog post is a short tutorial, which will show how to make your first Seaside component.
To follow this tutorial you need GNU Smalltalk 3.0a (which will be available from ftp://alpha.gnu.org/gnu/smalltalk/smalltalk-3.0a.tar.gz later today) or a later version.
One of the new features in 3.0a and later is the ability to run an image in the background and control it from the shell. For example, you can try these commands:
$ gst-remote --daemon $ gst-remote --eval '100 factorial' $ gst-remote --kill