With this integration: ```swift dependencies: [ .package(url: "https://github.com/lyft/swift-index-store.git", from: "1.2.0"), ], ``` The following error is produced with Swift Package Manager: > the target 'IndexStore' in product 'IndexStore' contains unsafe build flags It's possible to work around this by integrating swift-index-store with a branch rather than a version: ```swift dependencies: [ .package(url: "https://github.com/lyft/swift-index-store.git", branch: "main"), ], ``` But then SwiftPM isn't happy if this is done in a transitive dependency.