PowerBI Install

Hi All.

I have worked with PowerPI as a report developer but in this instance I would like to be able to:

1. Install PowerBI designer ( free version ) *3 developers
2. I have also number of user who will use the designed reports/ Dashboards to analyse data , change filter/ parameter ( as end user only) etc, what is the best way to share this reports with them.
3. I would like to host the reports/ dashboards where other can access it ( developer who can access the latest source, and end user to the output of the reports ), we don’t have the SharePoint. Could you please provide me all the option where I don’t need to change the environment.