kill9 runs on macOS Apple Silicon, macOS Intel, and Linux x64. Windows builds are coming soon.
Download the latest release from the kill9 website and open the installer. On macOS this is a DMG. On Linux it's an AppImage.
When the app window opens and you see "Welcome to Kill9," you're done. The onboarding wizard starts automatically.
That's the whole install process. No command line setup, no environment variables. The next step is onboarding, which walks you through connecting an AI provider and choosing your codebase.