Attention: Here be dragons

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Running Redot apps on macOS

See also

This page covers running Redot projects on macOS. If you haven't exported your project yet, read Exporting for macOS first.

By default, macOS will run only applications that are signed and notarized.

Note

When running an app from the Downloads folder or when still in quarantine, Gatekeeper will perform path randomization as a security measure. This breaks access to relative paths from the app, which the app relies upon to work. To resolve this issue, move the app to the /Applications folder.

In general, macOS apps should avoid relying on relative paths from the application folder.

Depending on the way a macOS app is signed and distributed, the following scenarios are possible:

App is signed, notarized and distributed via App Store

Note

App developers need to join the Apple Developer Program, and configure signing and notarization options during export, then upload the app to the App Store.

The app should run out of the box, without extra user interaction required.

App is signed, notarized and distributed outside App Store

Note

App developers need to join the Apple Developer Program, and configure signing and notarization options during export, then distribute the app as ".DMG" or ".ZIP" archive.

When you run the app for the first time, the following dialog is displayed:

../../_images/signed_and_notarized_0.png

Click Open to start the app.

If you see the following warning dialog, your Mac is set up to allow apps only from the App Store.

../../_images/signed_and_notarized_1.png

To allow third-party apps, open System Preferences, click Security & Privacy, then click General, unlock settings, and select App Store and identified developers.

../../_images/sys_pref_0.png

App is signed (including ad-hoc signatures) but not notarized

Note

App developer used self-signed certificate or ad-hoc signing (default Redot behavior for exported project).

When you run the app for the first time, the following dialog is displayed:

../../_images/signed_0.png

To run this app, you can temporarily override Gatekeeper:

  • Either open System Preferences, click Security & Privacy, then click General, and click Open Anyway.

    ../../_images/sys_pref_1.png

  • Or, right-click (Control-click) on the app icon in the Finder window and select Open from the menu.

    ../../_images/signed_1.png

  • Then click Open in the confirmation dialog.

    ../../_images/signed_2.png

  • Enter your password if you're prompted.

Another option is to disable Gatekeeper entirely. Note that this does decrease the security of your computer by allowing you to run any software you want. To do this, run sudo spctl --master-disable in the Terminal, enter your password, and then the Anywhere option will be available:

../../_images/macos_allow_from_anywhere.png

Note that Gatekeeper will re-enable itself when macOS updates.

App is not signed, executable is linker-signed

Note

App is built using official export templates, but it is not signed.

When you run the app for the first time, the following dialog is displayed:

../../_images/linker_signed_1.png

To run this app, you should remove the quarantine extended file attribute manually:

  • Open Terminal.app (press Cmd + Space and enter Terminal).

  • Navigate to the folder containing the target application.

    Use the cd path_to_the_app_folder command, e.g. cd ~/Downloads/ if it's in the Downloads folder.

  • Run the command xattr -dr com.apple.quarantine "Unsigned Game.app" (including quotation marks and .app extension).

Neither app nor executable is signed (relevant for Apple Silicon Macs only)

Note

App is built using custom export templates, compiled using OSXCross, and it is not signed at all.

When you run the app for the first time, the following dialog is displayed:

../../_images/unsigned_1.png

To run this app, you can ad-hoc sign it yourself:

  • Install Xcode for the App Store, start it and confirm command line tools installation.

  • Open Terminal.app (press Cmd + Space and enter Terminal).

  • Navigate to the folder containing the target application.

    Use the cd path_to_the_app_folder command, e.g. cd ~/Downloads/ if it's in the Downloads folder.

  • Run the following commands:

    xattr -dr com.apple.quarantine "Unsigned Game.app" (including quotation marks and ".app" extension).

    codesign -s - --force --deep "Unsigned Game.app" (including quotation marks and ".app" extension).