How to disable render on all files in a directory

[grepinsight]

I have a bunch of Rmd files from years ago that I want to keep in a directory in the repo I use for Quarto. Is there a configuration option that will disable rendering for all documents in a folder? I attempted to use _metadata.yml, to no avail.

execute:
  enabled: false

[mcanouil]

See https://quarto.org/docs/websites/index.html#render-targets.