The net.art generator automatically produces net.art on demand.
The technical base of the net.art generator is a Perl script, running on apache and debian servers. For the library version of imagemagick: v220.127.116.11+dfsg-2.1+deb10u1 and libimage-magick-q16-perl for the Perl (v.5.28.1) interface (as of Oct 2020).
See the net.art generator main page: http://net.art-generator.com/
note: Currently, the encoding format is utf-8 for index.cgi. There is also nag_extensions, which is developed and maintained by Gerrit Boelz, displaying a collection of the generated images as thumbnails in a grid and allowing to click on them to open a more detailed view of the image. See here for more info: https://lab.lostb.one/nag_extensions/gallery
The source code of nag_5b is available under GPL (GNU General Public License)