tuist install now uses SwifterPM by default to fetch and restore your Swift package dependencies. Resolution stays with the Swift Package Manager, while restoration links checkouts back to a global content-addressable store instead of copying them into every worktree. Warm restores drop to sub-second, and you stop paying for gigabytes of duplicated checkouts across worktrees.
This used to be opt-in through TUIST_USE_SWIFTERPM=1; now it's on by default. If you hit a package graph SwifterPM doesn't handle yet, set TUIST_USE_SWIFTERPM=0 to fall back to SwiftPM, and please open an issue so we can fix it.
Read more about how SwifterPM works in the announcement blog post.