Add Swift packages to your Xcode project.
Adds Swift package dependencies and links their products and optional configuration files in an Xcode project.
When to use it
Use when an iOS project needs dependencies installed.
Give it an Xcode project and a package to add; it configures the dependency and links the requested product modules.
What you provide
Requires a local Swift toolchain supporting Swift tools version 5.9.
The bundled configuration package targets macOS 13 or later.
This skill
https://github.com/firebase/firebase-ios-sdk/releases
Checks Firebase releases on GitHub