On Sat, 20 Jun 2020 17:11:11 +0200 Brice Waegeneire wrote: > + #:phases > + (modify-phases %standard-phases > + (add-after 'unpack 'set-tomb-path > + (lambda* (#:key inputs #:allow-other-keys) > + (let ((tomb (assoc-ref inputs "tomb"))) > + (substitute* "tomb.bash" > + ((":-tomb") > + (string-append ":-" tomb "/bin/tomb")))))) Phase should end in #t.