BlackArch is a penetration testing distribution, similar to Kali Linux, but it’s built on top of Arch Linux. In reality, BlackArch is really a pre-configured Arch installation with an extra repository full of security tools. As a result, you can add the BlackArch repository to a regular install of Arch and gain access to all the same tools.
This is a companion discussion topic for the original entry at https://linuxconfig.org/how-to-add-the-blackarch-pentesting-repository-to-arch-linux