Install raspotify on Ubuntu server 20.04 (64 bit)/64 bit Armhf
Note: Use this at your own risk! This worked for me on Ubuntu 20.04
Until it is supported on 64 bit distros
Add armhf
sudo dpkg --add-architecture armhf
sudo apt update
wget https://dtcooper.github.io/raspotify/raspotify-latest.deb
sudo dpkg -i raspotify-latest.deb
If it fails, install missing dependencies. Usually libasound2.
sudo apt install libasound2
If that breaks then
apt --fix-broken install
Once more
sudo dpkg -i raspotify-latest.deb