sudo ln -s /etc/sv/wpa_supplicant /var/service
wget https://dl.discordapp.net/apps/linux/0.0.16/discord-0.0.16.tar.gz | tar -xf
cd Discord ; sudo chmod +x Discord ; ./Discord
sudo xbps-install spotifyd spotify-qt
For spotify-qt just launch it in a terminal everything is clear like wather.
For spotifyd there is the wiki -> https://spotifyd.github.io/spotifyd/
And a useful video : https://www.youtube.com/watch?v=TaPWqXFtce8
And the brainless mode for launch it :
spotifyd --no-daemon -u your_username -p your_password
Tips : see the spotify.sh in this repo