Bundle Source 3.1.0 introduced a postinstall dependency on patch-package that is not likely to exist for most users and not retained as a dependency. The patch is necessary because execa retains onetime retains mimic-fn with a SES incompatibility. That has since been fixed, but until that rolls up into the dependent packages, execa is an unnecessary liability for bundle source tests.
Bundle Source 3.1.0 introduced a postinstall dependency on patch-package that is not likely to exist for most users and not retained as a dependency. The patch is necessary because execa retains onetime retains mimic-fn with a SES incompatibility. That has since been fixed, but until that rolls up into the dependent packages, execa is an unnecessary liability for bundle source tests.