Ninja way

 # fetch http://wolfrecorder.com/wrinstaller.sh && sh wrinstaller.sh

Supported all production releases: 13.2, 13.3, 13.4, 14.0, 14.1

Also you can use installer from nightly builds, in case you want to be ahead of the world

 # fetch http://snaps.wolfrecorder.com/wrinstaller_current.sh && sh wrinstaller_current.sh