Useless packages are hosted here.
Packages can be requested via issues or making a pull request.
Add the GPG key to pacman keyring and then sign it locally:
sudo pacman-key --recv-keys A885101D
sudo pacman-key --lsign-key A885101D
Then add the following repository configuration to your pacman.conf
.
[holvi]
Server = https://neuronactivation.github.io/holvi/$arch