Navigate to the official CloudStream GitHub repository (LagradOst/CloudStream-3). Download the latest release APK (Application Package File). Do not download from random forums; stick to GitHub for security.
If you meant (not Android), then features are: cloudstream repository portable
The search for a "portable" CloudStream repository does not yield a specific standalone "portable" version in the sense of a portable executable ( EXEcap E cap X cap E cloudstream repository portable