Your Application is Important
Your job application consists of your CV and a cover letter. The main purpose of your job application is to pave the way for a job interview.
Most employers spends only a few minutes deciding, whether you are an interesting candidate for the position: Both your application/cover letter and CV must be relevant and to the point.
Bring your application material (a laptop) and willingness to work with others.
The workshop includes a sandwich for lunch.