Add this repository
sudo apt-get update && sudo apt-get install curl apt-transport-https gnupg
curl https://apt.hrfee.dev/hrfee.pubkey.gpg | sudo apt-key add -
# Stable (jfa-go/jfa-go-tray only)
echo "deb https://apt.hrfee.dev trusty main" | sudo tee /etc/apt/sources.list.d/hrfee.list
# ------
# Unstable (jfa-go/jfa-go-tray, waybar-mpris)
echo "deb https://apt.hrfee.dev trusty-unstable main" | sudo tee /etc/apt/sources.list.d/hrfee.list
# ------
sudo apt-get update
index:
/dists/trusty-unstable/main/