Bioconductor and Cran provide r2u Docker images that use pre-built package binaries from Ubuntu repositories, which has a potential to speed up the current image building and waste less computing resources.
Here is the link to the bioc2u image.
I tested it on the fork fork and the build was > 2x faster. See for comparison the current
build.
The downside current is the requirement to install Quarto separately because it's not included in that image. But I think it's warranted to submit a PR to include it directly upstream because default Bioconductor images include it.
Check the current Dockerfile.