bspm.backend.check:
logical, default TRUE. If false,
the initial check on enable() is not performed.
bspm.version.check:
logical, default TRUE. If false,
as many binaries are installed as possible without any version check,
and then installation from source is used as a fallback.
bspm.sudo.autodetect:
logical, default FALSE. If true,
enables autodetection and selection of password-less sudo.
bspm.sudo:
logical, default FALSE. If true, forces
sudo unconditionally as the preferred mechanism.