Nothing to worry about. Yes, the minimal executable you get with SBCL is a bit fat, but for any real-world application which do some actual work, the size is a

Nothing to worry about. Yes, the minimal executable you get with SBCL is a bit fat, but for any real-world application which do some actual work, the size is a non-issue. Especially, as the executables are starting up very fast, as no dynamic linking is necessary, most of the code are static references. For any sizable Lisp project you would have an ASDF-file to load the system, with that you can create an easy build-script or even a make-file, which loads your program via ASDF and then builds the executable, it is described well here: https://stackoverflow.com/questions/14171849/compiling-common-lisp-to-an-executable https://stackoverflow.com/questions/14171849/compiling-commo... For consistancy, I would recommend to build the executable from the freshly loaded source, not a lisp image which has been used to develop in.