- Web-based key editor (Alpine.js SPA) - Actions: shell commands, scripts, built-in media/volume/brightness, page switching - Keyboard shortcut action (wtype/xdotool) - On-device display with periodic command output - Auto page switching (Hyprland, Sway, Niri, GNOME, KDE, X11) - Screensaver with idle detection - Config hot-reload - Multi-device support