Add content in footer for one slide

[alxsimon]

Hi, I'd like to add some text to the footer on some of my slides.
I've found a way to do this but it has some side effects, for example:

#import "@preview/touying:0.6.1": *
#import themes.metropolis: *
#show metropolis-theme.with(aspect-ratio: "16-9")

#set text(16pt)

#title-slide

#slide()[foo]

#[
#show: metropolis-theme.with(footer: [@Nielsen2025])
#slide()[
  #image("figs/Nielsen2025_fig1.svg")
]

#slide()[bar]

Unfortunately, in the second slide the text size reverts to the default one.
Is there a better way to do this ?

[alxsimon]

Well one solution was in the Typst forum in fact https://forum.typst.app/t/how-to-write-content-at-the-bottom-of-a-page/2480

But I'd still be interested in understanding why the text size is reset locally.

[OrangeX4]

#import "@preview/touying:0.6.1": *
#import themes.metropolis: *
#show: metropolis-theme.with(aspect-ratio: "16-9")

#set text(16pt)

#title-slide()

#slide()[foo]

#slide(config: config-store(footer: [something]))[
  content with footer
]

#slide()[bar]