Pictools is my architecture for creating and managing this web site, especially one that displays sets of pictures. Each set is displayed in a "thumbs" page showing small versions of the pictures and a slideshow button. Clicking on a thumb brings up a picture frame page with caption. Clicking the "slideshow" button starts a slideshow.
For building your own website, you should skip Pictools in favor or one of the many comprehensive predefined website builders. Choose Pictools if you are a hobbyist like me, or want to learn how things are done, or want to read comprehensive documentation. The Key Concepts page describes several interesting innovations in Pictools: properties, universal page template, and captions files. Also of value are the tools described in errors for managing URL errors and webscum attacks.
The menu at the left categorizes all Pictools file. They are installed variously to directories /, /admin, /libraries, /pictools, /scripts, and /Templates.
Thumbs page
Picture frame page
Slideshow page
The picture, unadorned
A leading dash on a path (/...) is short for SRCROOT, the root directory of the pictools installation. (SRCROOT must be defined in the shell environment.)