One tab, every alert across staging, prod, and DR

Three environments, three containers, three notification servers. You don't want three browser tabs.

A small monitoring container opens three WebSockets: one to each environment's notification server, all displays=0. It merges them and exposes a single page on its own display. You open that one display. Every notification from every environment streams through it, prefixed by the environment name and color-coded by urgency.

When you spin up a fourth environment for the migration project, you add one line to the WebSocket list. No new dashboard. No new seat. The aggregator container stays a few megabytes of disk while idle and wakes when one of its WebSockets has traffic.

You used to need Datadog or Grafana Cloud or a per-seat observability SaaS to do this. Now it's three WebSockets and a notification tab.

The dashboard is a tab, not a vendor.