Chadwain Holness schreef op di 22-03-2022 om 11:04 [-0400]: > +    (arguments > +     `(#:phases (modify-phases %standard-phases > +         (replace 'check > +          (lambda _ (invoke "python" "-m" "pytest")))))) As mentioned previously: Try running the linter "./pre-inst-env guix lint streamlink", it will give a warning. Greetings, Maxime.