Thanks for your response. Just a clarification: Note that some extensions don't allow XPC due to privacy reason, and hence can't use a model via the Foundation Models framework. Does this include SystemLanguageModel?

This is our exact use case as well. We've always had this in our build scripts: if which swiftlint > /dev/null; then if [ "${ENABLE_PREVIEWS}" = "YES" ]; then exit 0; else swiftlint --fix; swiftlint; fi else echo "warning: SwiftLint not installed, download from https://github.com/realm/SwiftLint" fi