Most Common Lisp implementations will try to load an init file on startup:
ImplementationInit fileSite/System Init fileABCL$HOME/.abclrcAllegro CL$HOME/.clinit.clECL$HOME/.eclrcClasp$HOME/.clasprcCLISP$HOME/.clisprc.lispClozure CLhome:ccl-init.lisp or home:ccl-init.fasl or home:.ccl-init.lispCMUCL$...
Common Lisp has a way to influence the compilation strategies. It makes sense to define your preferred values.
Optimization values are between 0 (unimportant) and 3 (extremely important). 1 is the neutral value.
It's useful to always use safe code (safety = 3) with all runtime checks enabled.
Not...
