It looks like this commit may have been when the behavior changed: feat(zeroconfig): Add support for zero-config (#139) · roots/acorn@c2d8571 · GitHub You might be able to adjust the settings in the logging config and get the result you want, although it does seem odd that we’d make a decision that disables system logging by default. Maybe @QWp6t can weigh in, I confess I don’t understand exactly how the error logging is set up.