Amahi is an app that easily allows you to stream and access the files in your Amahi server. This app is Chromecast-enabled.
Amahi runs on your device and can access your server's files without a VPN.
This application requires that you have an Amahi server (otherwise known as HDA for "Home Digital Assistant").
Amahi does not require VPN and all it requires is the corresponding Amahi Anywhere app running your server. Once connected, either locally or remotely, you can browse all your shares and browse, open documents, and stream videos from your Amahi server.
 Sign up and install your HDA at https://www.amahi.org/signup