Run parallel tests with:

bundle exec parallel_cucumber features/ -o "-p local -p chrome_headless -p report"

1 process per feature file Add "-n 10" for 10 processes etc Add -o to specify flags e.g. -p local -t @sanity etc

-p report = Profile for multiple reports

in cucumber.yml: report: --format html --out report/report<%= ENV['TEST_ENV_NUMBER'] %>.html