So https://stacksmith.org has now been sort of restored, and a hopefully not quite as broken build can be found on the Github releases page.
Forge can now be used in a "web site mode" not unlike PHP: Scripts can be enclosed in <? and ?> and in between web page content can be left: https://mastodon.cloud/media/xhbJDasjaVKURRLDQ0Y
(Now keep in mind, lacking built-in file access in that tool or ability to launch other shell scripts, it's at best useful for simple text processing)
I just updated the Forge command line tool so it will work as a Unix scripting language (in that it will ignore the shebang). https://github.com/uliwitness/Forge