Found on https://minnie.tuhs.org/pipermail/tuhs/2022-May/025840.html
Reveal.js is a tool for creating good-looking HTML presentations, authored by Hakim El Hattab. http://lab.hakim.se/reveal-js/#/
Org-Reveal exports your Org documents to reveal.js presentations.
With Org-reveal, you can create beautiful presentations with 3D effects from simple but powerful Org contents.
Blog about programming (Emacs, Common Lisp, etc.). Includes a demonstration of a HTML5/JavaScript based presentation software. Found via a comment in powerline.el on the EmacsWiki.
Marc Feeley demonstrated how to write a simple Scheme to C compiler, in Scheme. In only 90 minutes! Presentation material (slides?), source code and video (200MB) are available.
S5 is a slide show format based entirely on XHTML, CSS, and JavaScript. With one file, you can run a complete slide show and have a printer-friendly version as well.