Pier replaces the macOS Dock. When Claude Code needs your permission, a deploy fails or a sale comes in, it shows up right beside your apps, and one click takes you there. It also keeps everything a Dock should do and adds window previews, folders that open as a grid, a dock on every display and 48 live widgets: Vercel, GitHub, Sentry, Stripe, Claude limits, calendar, weather and more. Your xbar scripts run as widgets too. 14-day free trial, then €29 once. No account, no analytics.