connect: {
      options: {
        port: 8080,
        // Change this to '0.0.0.0' to access the server from outside.
        hostname: '0.0.0.0',
        livereload: 8081
      },
      ...

http://project-user.c9users.io:8080/

`kill -9 $(lsof -i:8080 -t)`