Build your website or your prototype and coordinate your team.

Unless you need very specific website technology, most people can get a functional website, protoype, and access collaboration technology at very reasonable costs. The following are examples of available products. 

www.trello.com  (boards/cards)

www.asana.com  (very customisable, but good templates too, boards or lists)

www.kanbantool.com   

https://jira.atlassian.com (less user friendly for the uninitiated)  

www.pivotaltracker.com (old school  )

https://www.zoho.com/sprints/

www.monday.com

www.teamwork.com

www.taskade.com  (decent Slack alternative too)

www.flock.com    (decent Slack alternative too)

https://aws.amazon.com/activate/  Oberlin has credits that can go towards server costs.  Please reach out to Bara Watts for information.

https://www.digitalocean.com/hatch/

https://cloud.google.com/developers/startups/