install-itch

Generates installers for itch and kitch (beta) on Windows, macOS and Linux. Both are built from the same itch-setup binary downloaded from broth.itch.zone - the kitch variant is simply renamed.

Deploys to:

• https://itchio.itch.io/install-itch (stable)
• https://itchio.itch.io/install-kitch (beta)

Build Process

Builds are run via GitHub Actions (.github/workflows/build.yml). Deployment is triggered manually via workflow dispatch.

Windows

Downloads itch-setup.exe from broth.itch.zone.

Output: artifacts/install-{app}/windows-amd64/{app}-setup.exe

macOS

Creates a universal (Intel + ARM64) macOS app bundle:

1. Downloads itch-setup for both darwin-amd64 and darwin-arm64 from broth.itch.zone
2. Combines them into a universal binary using lipo
3. Packages as an app bundle:

   Install itch.app/
     Contents/
       Info.plist
       MacOS/
         itch-setup
       Resources/
         itch.icns
   

4. Code signs the app with Developer ID certificate
5. Creates a DMG disk image
6. Notarizes the DMG with Apple

Output: artifacts/install-{app}/darwin-universal/Install {app}.dmg

Linux

Downloads itch-setup from broth.itch.zone.

Output: artifacts/install-{app}/linux-portable-amd64/{app}-setup