Run yarn bootstrap to get everything set up to run locally
Run yarn dev to start a local PHP server on localhost:8090
Run yarn deploy
This will push your latest changes to the server. This deployment mechanism was set up follwing these guides:
https://ajfleming.info/git-deployments-on-mediatemple/
http://joemaller.com/990/a-web-focused-git-workflow/
See them for more information.