Installation

Homebrew (recommended)

The easiest way to install Proton on macOS or Linux is via Homebrew.

brew tap foundation/proton
brew install proton

To upgrade to the latest version:

brew upgrade proton

Download the PHAR

You can download the latest proton PHAR binary directly from the GitHub Releases page. Place it somewhere in your PATH and make it executable:

chmod +x proton
mv proton /usr/local/bin/

Composer

You can also install Proton globally via Composer:

composer global require foundation/proton

Make sure the Composer global bin directory is in your PATH. By default this is ~/.composer/vendor/bin.