> sent is interesting, but as a teacher, I need some mathematical symbols,
> and a tool to write more than 3 words per slide...
>
> (by the way, on debian, sent can't find any font...)
>
> reveal.js is interesting too, but far from suckless...
>
> I'll stick to markdown+pandoc->beamer for now until I find better.
You can try with troff. Take a look of [1], [2] and [3].