I don't know if this is still the case, but for SBCL on Debian installing with apt-get would get you an incredibly outdated version, and all that common-lisp-co

I don't know if this is still the case, but for SBCL on Debian installing with apt-get would get you an incredibly outdated version, and all that common-lisp-controller nonsense. The standard advice was NOT to install with apt-get, but to install manually.