Does quarto-cli have a recommended way to execute a YAML altering script pre-render?

[ddanieltan]

I've got a personal blog where I want to place a random quote in the footer with every render. I know from #606 that inline R code does not work in the YAML currently.

My current solution is to have a build file that runs a script to randomly insert a quote in my _quarto.yml before executing quarto render, but I wanted to check if there's an alternative way to achieve that. (Perhaps there's a quarto-cli flag/feature that I'm unaware of)