I may be missing something obvious, but I would like to do that. I'm working on a quarto slide presentation (formatted in revealjs) and I have defined a bunch of objects in the `params` variable in my YAML
```
---
...
params:
   title: "My title"
   author: Gianluca Baio
   date: 27 November 2022
   institute: "[My work](Their website)"
   conference: "Where I'm speaking"
   location: "What town"
...
---

HERE GOES THE REST OF MY SLIDES
```

What I would like to do is to use the elements of `params` to feed to the `footer` that I want to use for the slides, something like
```
...
format: 
   revealjs:
      footer: `r params$author` | `r params$title` | `r params$date`
```
but it seems like I can't use the 
```
`r command`
```
tag inside the yaml, as it returns an error
```
bad indentation of a mapping entry at line 9, column 10:
       footer: `r params$author`
```

Like I said, it's possible I am not doing this right --- but can anyone explain why and how I can do it instead?

Thanks
Gianluca
2022-07-14T12:26:48Z
giabaio
Future
open
Can I use R variables in quarto YAML?
https://github.com/quarto-dev/quarto-cli/issues/1391