Make websites with R Markdown styled with the GOV.UK Design System. See the website.
remotes::install_github("ukgovdatascience/govdown")Use install-govuk-frontend.sh to download, modify and compile the GOV.UK Design System to get the css files for the templates.
The sassc command-line tool. If you can't get that to work, try the sass
package by RStudio, which wraps it.