Speaker Notes

A slide should hold what the audience needs. Everything you need — the figure
you must not forget, the number you can never remember, the transition into the
next topic — goes into a speaker note, visible only to you.

Writing a note

/notes[…] is a directive on its own line. It attaches to the slide it sits in
and never renders on screen:

## Photosynthesis

- Light-dependent reactions
- The Calvin cycle

/notes[Start with the leaf on the desk. Ask who has seen a chloroplast.
Mention the 1961 Nobel before moving on.]

Put it anywhere in the slide — top, bottom, between blocks. Convention is at the
end, where it doesn't interrupt the content you're reading while you write.

One note per slide, one line

A second /notes[…] on the same slide replaces the first rather than adding
to it. And the directive must open and close on the same line: a /notes[ left
open across several lines is not recognised and its text silently disappears.
Multi-line notes are a known limitation, not a design choice.

Presenter mode

Cmd/Ctrl + P opens the presenter window. It shows, side by side:

• the current slide, as the audience sees it;
• the next state — not the next slide. While the current slide still has
  clicks pending, the panel previews that slide one click ahead and its label
  reads Próximo clique (2/3). When the clicks run out it switches to the next
  slide and reads Próximo slide. You always see what the next key press will
  do;
• your speaker notes for the current slide;
• a running timer.

Navigation is shared between the two windows: whichever one has focus, the
arrow keys move both.

The timer

The presenter timer counts your talk. Give a slide a target and it will tell you
whether you're ahead or behind:

## The long derivation
===
time: 3:00
===

time: (synonym duration:) accepts plain seconds (90) or M:SS /
H:MM:SS (3:00, 1:05:00). Set it on the slides that matter — the ones you
know you overrun — rather than on all of them.

Two screens

The Telas button in the presenter toolbar lists every monitor Tachyonn can
see and lets you assign one to the presentation and one to the presenter. Tick
Apresentação em tela cheia for real fullscreen on the audience's display.

The arrangement is saved and re-applied every time you open the presenter, and
monitors are matched by name rather than by index — so unplugging the
projector and plugging it back in doesn't scramble the setup. If something did
move, Cmd/Ctrl + Shift + D (also View → Arrange Displays) puts it
back.

Notes in the PDF

Notes are exported on request, printed under each slide:

tachyonn export lecture.tac --notes

That's a decent handout for a substitute lecturer, and a decent rehearsal
document for yourself. See PDF Export for the
rest of the options.