#Rstats gurus how one check before crashing on CRAN check esoteric (or not so esoteric) issues around mac-old-release setup and other macos flavors not available on r-lib actions? Last check of a package I submitted (works fine on macbuilder and other macos flavours) https://www.r-project.org/nosvn/R.check/r-oldrel-macos-arm64/Rtinycc-00install.html