A **Search** field at the top of the sidebar opens the command palette (⌘K). The compact footer keeps connection status, **Settings**, **Docs**, mobile pairing, and the light/dark/system color-mode toggle together; when the gateway runs from a source checkout on a branch other than `main`, the footer also shows that branch name in red so a non-release gateway is obvious at a glance (release installs never show it). Shift-Command-Comma opens **Settings** without overriding the browser's Command-Comma shortcut. The sidebar header also holds the collapse toggle (⌘B); collapsing hides the sidebar entirely for a full-width workspace, and a floating expand control (or ⌘B) brings it back; the macOS app hosts that toggle natively in the titlebar instead. The sidebar is the only navigation chrome on desktop, with no top bar. Narrow viewports swap the sidebar for a slide-over drawer behind a compact header row holding the drawer toggle, brand, and command-palette search; in the macOS app that header row folds the titlebar clearance into a single compact strip beside the window controls. Navigation uses regular browser history, so the browser's back/forward buttons traverse it; the macOS app adds a native sidebar toggle and back/forward buttons next to the window controls, plus trackpad swipe gestures.