Reproduce

Exactly

nix \
    --extra-experimental-features nix-command \
    --extra-experimental-features flakes \
    --log-format raw-with-logs \
    build --no-link 'git+ssh://git@github.com/sellout/emacs-extended-faces?ref=master&rev=f17d6e4df3dc715b99163454fbf7be48149b1c00#packages.x86_64-linux.emacs-extended-faces' \
    --print-build-logs

Locally

Must be run from repository root directory at commit f17d6e4d

nix \
    --extra-experimental-features nix-command \
    --extra-experimental-features flakes \
    --log-format raw-with-logs \
    build --no-link .#packages.x86_64-linux.emacs-extended-faces \
    --print-build-logs

Feedback Loop

Must be run from repository root directory at commit f17d6e4d

nix run github:NorfairKing/feedback -- -- nix \
    --extra-experimental-features nix-command \
    --extra-experimental-features flakes \
    --log-format raw-with-logs \
    build --no-link .#packages.x86_64-linux.emacs-extended-faces \
    --print-build-logs

Limitations