How to turn off slide numbers for different slide levels

[pm-gusmano]

Description

I want to automatically remove slide numbers for first-level slides. In other words, given the code

# Check this out!

## Code
We can easily write `code` in our presentations.

# Foo

## bar

The slide number won't render on # Check this out! or # Foo, while rendering on ## Code and ## bar. I'm familiar with the solution from this discussion, and while it works, I'd love it if this could be automated!

[mcanouil]

Adapt the code following Reveal.js documentation or use a CSS rule to hide the slide number on those slides.

Note that the discussion you referenced is one of many. I suggest reading the other discussions/issues referenced in it.