New run_rscript() can run R scripts in the capsule via callr::rscript() (@gadenbuie#27)
run_callr() exposes the show option with default to TRUE.
detect_depencies() is now exported
capsule 0.4.1
remove capshot dependency on renv:::renv_alias.
When looking for the sitaution where packages with the same version have different SHAs, only real shas are considered. Not the fake version SHAs inserted by {pak} et. al.