Month 2025-11 — concise developer monthly summary for lichess-org/mobile. Focused on delivering user-facing UX improvements and robust battery/resource management, with test coverage to prevent regressions. Key features delivered include Wakelock Lifecycle Management on Game End (disables wake lock at game end, with status checks, integration of the wake lock package, and tests) and Friends Page Empty State UX (replaces loading spinner with an informative empty state when not following anyone, with localization updates and UI logic to handle empty states). Major bugs fixed: none reported this month; maintenance centered on stability and regression protection. Overall impact: improved battery efficiency for end-of-game scenarios, clearer social UX, and stronger regression protection through targeted tests, contributing to better user retention and perceived performance on mobile. Technologies/skills demonstrated: Android/Kotlin development, Wakelock resource management, localization, UI state handling, and test-driven development.