Can I use Quarto Live even without live code chunks?

[bensoltoff]

Description

I am currently dealing with a problem similar to #10544 but instead the output format is revealjs. I have a directory of Quarto documents, the majority of which are format: revealjs. I use _metadata.yml to set custom formatting for all of them.

Some of the slides have interactive code chunks embedded using Quarto Live, so the output format is format: live-revealjs. But if I try to set the same formatting options in _metadata.yml like

format:
  revealjs:
    width: 1600
    height: 900
  live-revealjs:
    width: 1600
    height: 900

I get the same error as in #10544. I can work around this by setting something like

format:
  live-revealjs:
    output-file: 14-slides-live.html
    width: 1600
    height: 900

in the live-revealjs documents, but I would rather not have to since it makes it harder to update the revealjs settings in the future.

As a workaround, I was thinking of switching all the Quarto documents to format: live-revealjs whether or not they actually have webr code chunks. Then _metadata.yml only defines settings for live-revealjs and all the documents inherit them. Has anyone tried this? Does it change the rendered slides in any meaningful way using revealjs vs live-revealjs if you don't have interactive code chunks?

[mcanouil]

Why wouldn't you be able to use this custom format regardless of the content?
Regarding metadata merging, see the documentation to understand how it happens:

• https://quarto.org/docs/projects/quarto-projects.html#metadata-merging

Note that the live extension is not developed nor maintained by the Quarto team.

[cderv]

As a workaround, I was thinking of switching all the Quarto documents to format: live-revealjs whether or not they actually have webr code chunks

I would expect this to work, and it seems to be the right solution. If not probably something to report at https://github.com/r-wasm/quarto-live