A free, open-source guided breathing meditation app based on the Wim Hof method. Features: - Guided breathing sessions with visual and audio cues - Configurable breath counts and hold times - Session history with local storage - 8 color themes (Forest, Ocean, Sky, Sunset, Lavender - each with light/dark variants) - Sound effects (breath in/out, bell) - Fullscreen mode with proper DPI scaling - Touch-optimized UI for mobile devices Available platforms: Linux, Windows, Android, WebAssembly.