build the scala native lib

cd sn-lib
sbt linkLibraries; buildFramework

This will have created the framework in the sn-lib/NativeSandboxLib.xcframework directory. This framework is referenced from the xcode project.

xcode project config file

Create/edit the config override file: NativeSandbox/ConfigOverride.xcconfig

DEVELOPER_TEAM = MY_TEAM_ID

(might work with a random string instead of a real team id, at least in simulator)

open the xcode project

Open the NativeSandbox project directory in XCode.

Run the application, click the button.