Under the hypothesis of a host with Python installed with poetry, pre-commit tooling and flatpak builder: 1. Start 'emacs -Q' 2. Clone the Git repository https://github.com/orontee/argos and install pre-commit hooks as described in the CONTRIBUTING guide 3. Visit a file in the directory containing the cloned repository 3. C-x p c poetry run pre-commit run -a RET 4. Rename buffer (C-x x u) 5. C-x p c flatpak-builder --user --install --force-clean builddir io.github.orontee.Argos.json Observe that the first compilationbuffer doesn't show any ANSI sequences but the second displays many ^G^[ char sequences: