Getting Started with Swiftly on macOS

Install the package in your user account:

installer -pkg swiftly-1.0.0.pkg -target CurrentUserHomeDirectory

Run the following command in your terminal, to configure swiftly for your account, and automatically download the latest swift toolchain.

~/.swiftly/bin/swiftly init

Note: You can set the SWIFTLY_HOME_DIR and SWIFTLY_BIN_DIR environment variables to customize the install location.

Your current shell may need some additional steps to update your session. Follow the guidance at the end of the installation for a smooth install experience, such as sourcing the environment file, and rehashing your shell’s PATH.

Now that swiftly and swift are installed, you can access the swift command from the latest Swift release:

swift --version
--
Apple Swift version 6.1 (swift-6.1-RELEASE)
Target: arm64-apple-macosx15.0

Or, you can install (and use) another swift release:

swiftly install --use 5.10
swift --version
--
Apple Swift version 5.10 (swift-5.10-RELEASE)
Target: arm64-apple-macosx15.0

There’s also an option to install the latest snapshot release and get access to the latest features:

swiftly install --use main-snapshot

Check for updates to swiftly and install them by running the self-update command:

swiftly self-update

You can discover more about swiftly in the documentation