Messenger's client and server backend
yay -Sy privacy-protection-messenger
git clone https://github.com/imperzer0/privacy-protection-messenger.git
cd privacy-protection-messenger
makepkg -sif
sudo bash -c ". ./PKGBUILD && build && notarch_package"
Install https://github.com/imperzer0/privacy-protection-messenger-qt to use backend in client mode.
sudo systemctl enable privacy-protection-messenger.service --now