Checklist: Meaningful commit message, eg add my-cool-package (please not mention build-constraints.yml) At least 30 minutes have passed since uploading to Hackage On your own machine, in a new directory, you have successfully run the following set of commands (replace $package with the name of the package that is submitted, and $version with the version of the package you want to get into Stackage): stack unpack $package-$version # $version is optional stack init --resolver nightly stack build --resolver nightly --haddock --test --bench --no-run-benchmarks