A wivrn-dashboard package is available on AUR:
yay -S wivrn-dashboard
In order to run OpenVR or any Steam game, a compatibility library such as opencomposite or xrizer is also needed:
yay -S xrizer-git
A wivrn package is available in Fedora:
sudo dnf install wivrn
Note that patented codecs (H.264 and H.265) are not available by default on Fedora, you will have to install them from rpmfusion if you need to use such codecs.
A media-libs/wivrn package is available on Guru.
In order to run OpenVR or any Steam game, media-libs/xrizer or media-libs/opencomposite is also required.
WiVRn is available on the Meta Store for Quest 2 / 3 / Pro. For other headsets, including the Quest 1, you will have to sideload it by following the connection wizard in the dashboard.
When you start the dashboard the first time, the connection wizard will help you install the client on your headset.
You can run it later by clicking the "Wizard" button in the dashboard.
On a Quest, if you did not install it from the Meta Store, it will be in the "Unknown Sources" section.
If the server list is empty in the headset app:
systemctl status avahi-daemon. If it is not, enable it with
systemctl enable --now avahi-daemon.