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Installing qctl

Install the separately versioned native qctl CLI from its official distribution.

Install qctl

qctl is a separate native Java/GraalVM-based tool. It is not the npm package @qqq/qctl. For macOS or Linux, the documented Homebrew installation is:

Bash

brew tap QRun-IO/qctl
brew install qctl
qctl --version
qctl --help

For other platforms, follow official qctl releases and the qctl README. Choose the binary for your OS and architecture. Java 21 and Maven are needed to build QQQ 4.0 applications, even when the CLI itself is a native binary.

qctl has its own release schedule. Installing it does not certify generated templates or production QBits against QQQ 4.0. The source-based quickstart works without qctl.