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Would you be willing to provide a helper function for installing the latex packages required when building R + recommended packages from source? For example, I had to install ae + parskip when building the utils + parallels vignettes.

Alternatively, perhaps:

https://github.com/yihui/tinytex/blob/07cea7ffb0e04b1f78a7b20192b279a7f35a3793/R/install.R#L301-L305

could be exported, since I think your collection of packages covers everything needed by R + the base / recommended packages.