The original version was written in 2015. In 2026, I rewrote it and move it to https://tangled.org/radovan.xyz/cicero

Reasons for the rewrite:

• Less code, simpler setup, cleaner API, easier to explain and hopefully easier to understand.
• I wanted easier and cheaper maintenance and move to a different cloud service.
• I wanted to experiment with Tangled.
• Version-pinning of JS (and CSS) moved from the URL to the Markdown and is now in the hands of the user. I believe this makes slide decks more future-proof and gives me less headaches with backwards compatibility and reproducibility.
• I wanted to get rid of some hidden defaults and accidental defaults but was worried that removing them would break users' slide decks.
• More flexibility for the user: The new code now supports remark, reveal.js, and marp.
• The command-line tool has been rewritten to Rust. Not because this is fashionable but because it makes me more calm going forward. The command-line tool is self-contained, less brittle, and more flexible. But I understand that cargo install is not the same as pip install for many users.

Follow-up:

• I will keep https://cicero.xyz/ alive for a bit and search through logs and contact those who use it for their presentations and offer them help to migrate to the new site.