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Install

kiln is a closed-source app, distributed as a signed, notarized cask through Homebrew. Homebrew is the only way to install it.

brew tap mcclowes/kiln
brew trust mcclowes/kiln   # Homebrew 6 gates third-party taps
brew install --cask kiln

That's it. The first launch may take a moment while macOS verifies the notarization.

Requirements​

  • macOS 26+ (Tahoe)
  • Apple Silicon
  • For on-device intelligence: Apple Intelligence enabled in System Settings

Updating​

brew upgrade --cask kiln

New releases are built, signed, and notarized by CI on every v* tag, which also updates the cask in mcclowes/homebrew-kiln. So a brew upgrade always pulls the latest signed build.