The presentation was minimal, included some code snippets and was super easy to follow. Appears that it was put together all in Markdown, using a very popular open source tool (which I was not aware of): sli.dev. Highly recommend it for folks who make technical presentations.
p.s in the same space, someone also recommended https://revealjs.com/


I’ve never used either so I looked them up; https://htmldecks.com/blog/slidev-vs-revealjs-2025.html says
Anyone have any first-hand opinions?
Revealjs is pretty amazing, especially coupled with pandoc. You write markdown and you get slides that you can personalize.
It’s been my to go method for slides for almost a decade now
Revealjs also supports markdown.