# FAQ

**Does Xcode's "Add Package" dialog work with Perchly?**
Not for entering a registry identifier directly — only git URLs are supported there.
Run the one-time `swift package-registry set` command in Terminal first; after that,
projects with a `Package.swift` resolve normally, including through Xcode.

**Are packages signed?**
Not yet. `swift package resolve`/`build` print an "is not signed" warning but still
succeed.