RelevanceKit Provide on-device contextual clues that increase a widget's visibility in the Apple Watch Smart Stack. RelevanceKit tells the system when a widget is relevant by time, location, fitness state, sleep schedule, or connected hardware. Targets Swift 6.3 / watchOS 26+. Beta-sensitive. Re-check Apple documentation before making strong RelevanceKit availability or behavior claims. See references/relevancekit-patterns.md for complete relevant-widget, timeline provider, grouping, preview, and permission patterns. Contents - Overview - Setup - Relevance Providers - Boundary Routing - Time-…