The recommended way to install PikaTorrent is from the app stores. You will receive automatic updates, and the app will be associated with "magnet:" and "pikatorrent:" links, as well as .torrent files on the desktop. You can find the store links for Android, Linux, and Windows on the home page.
If you prefer, you can access alternative downloads (setup.exe, portable .zip version, .apk) on the Github release page, by expanding the "Assets" section.
Casting media files from the PikaTorrent mobile app
Using the Android app, you can cast media files (videos, music, etc.) with an external app like VLC. Open the file you want to stream from the "Files" menu with VLC, and VLC will display a cast icon to stream to your available devices.
Currently, preliminary translations are available for French, Russian, and Brazilian Portuguese.