Hitchhiker is a cross platform web application base on Nodejs, you can deploy it in Linux, Mac or Windows. Hitchhiker also has a docker image in docker hub, so the recommend way is deploy it with docker, much easier.
There are several setting that you can use while deploying, refer to Configuration.
Hitchhiker use a mail service that used to send mail for Project members invitation or Schedule run result. Sometimes user server can't access internet, in this case, you can refer to Custom Mail Interface.