webpack is not running after starting separate expressJS service

For some reason I do not see webpack being kicked off. My script stops right after yarn start and never runs webpack-dev-server –watch –env=dev –open part of it in my dev script. I suppose that’s because the node service doesn’t exit and continues to run so I never get a completion hence the && webpack-dev-server –watch –env=dev –open never runs? Answer NodeJS is single threaded. It never left nodemon.