You can download a binary from the releases section on GitHub.
Move it to a folder on your PATH.
Or use this script.
Run this command to download the script and install it automatically.
curl https://raw.githubusercontent.com/pspiagicw/qemantra/main/scripts/install.sh | bash
This script would detect your system and download the appropriate binary and install it in
If possible it would also install manpages and other meta information.