Wow, thanks for the explanation, it's very enlightening! This should probably end up in the documentation somewhere. Maybe as part of the packaging tutorial? Or for the long-due "Advanced Packaging Tutorial"? > (define my-procedure-code '(lambda (a b c) ...)) > > (arguments > `(#:phases (let ((my-procedure ,my-procedure-code)) (modify-phases ...)))) This is a great tip! -- Pierre Neidhardt https://ambrevar.xyz/