To play music or video on your Raspberry Pi via Bluetooth and Airplay using OSMC, you will need to do the following:

1. Make sure your Raspberry Pi is running the latest version of OSMC and that it is connected to the internet.
2. Install the Bluetooth and Airplay add-ons for OSMC. You can do this by going to the settings menu, selecting “Add-ons”, and searching for “Bluetooth” and “Airplay”.
3. Once the add-ons are installed, go to the settings menu and select “Bluetooth”. Here, you can pair your Raspberry Pi with your Bluetooth device (such as a phone or speaker).
4. Once your device is paired, you should be able to select it as an output device in OSMC.
5. To use Airplay, go to the settings menu and select “Airplay”. Here, you can enable Airplay and select your Raspberry Pi as an Airplay speaker.
6. Once Airplay is enabled, you should be able to use any device that supports Airplay to stream music or video to your Raspberry Pi.

Note that this is a general guide, and the specifics of these steps may vary depending on the version of OSMC you are using.