> WiVRn wirelessly connects a standalone VR headset to a Linux computer. You can then play PCVR games on the headset while processing is done on the computer.
WiVRn is based on [Monado](/docs/fossvr/monado/) and can be used with [OpenComposite](/docs/fossvr/opencomposite/) to support a majority of titles available for SteamVR. A wide range of standalone headsets are supported.
We recommend using [Envision](/docs/fossvr/envision/) to install and launch WiVRn & OpenComposite. Envision will handle all configuration seamlessly and avoids many of the pitfalls of a manual setup.
Alternatively, you can use the [WiVRn Flatpak](https://flathub.org/apps/io.github.wivrn.wivrn) which includes OpenComposite as part of it.
## General WiVRn Notes
To use WiVRn you need to have Avahi installed and running. You can ensure it is running with the following terminal command:
```bash
systemctl enable --now avahi-daemon
```
If you have a firewall installed, you will need to ensure ports 5353/UDP and 9757/UDP+TCP are open for Avahi and WiVRn itself, respectively.
If you are using Nvidia proprietary drivers, you will need to have [Monado Vulkan Layers](https://gitlab.freedesktop.org/monado/utilities/vulkan-layers) installed to play any steam games with WiVRn.
For audio in WiVRn, you will need to assign applications, or the system as a whole, to output audio to the virtual output "WiVRn" which is created upon connection between the server and the headset.
Discovery happens only on first connection, so be sure to **have all lighthouse devices powered on and in line of sight of base stations before connecting the headset!**
Once a device is discovered, it may be powered off and then back on later.
- Spread the devices out more; lighthouse devices get discovered quicker if they're not piled up on each other. Simply strapping them on is good, too.
- Increase `LH_DISCOVER_WAIT_MS`, though this delays the client on first connection.
To re-discover devices, restart WiVRn server.
At this point, your lighthouse devices will be randomly floating about somewhere. To calibrate them, follow the guide in the [Motoc README](https://github.com/galister/motoc/blob/main/README.md).
This section covers using WiVRn with SlimeVR trackers (not via OSC). Tracking fidelity is reported to be similar to what's achievable with the SteamVR-native solution.
