Specifying an R environment by having a DESCRIPTION file
Binder supports using R and RStudio, with libraries pinned to a specific snapshot on MRAN.
If you specify a
runtime.txt file that is formatted like:
where YYYY-MM-DD it will use the MRAN snapshot of that day for setting up the R runtime.
Without specifying a
runtime.txt it will use a 2-day old snapshot of MRAN.