SolidStackWeb is a mountable Rails engine that provides a production-ready operations dashboard for the full Solid Stack. It covers Solid Queue (job browser, failed job retry with inline argument editing, queue pause/resume, recurring tasks, performance stats, CSV export, and alert webhooks), Solid Cache (entry browser, size distribution, 24-hour write timeline, and optional value preview), and Solid Cable (channel browser, per-channel message list, and purge controls). Ships with dark mode, Turbo Stream responses, a JSON metrics endpoint, and no asset pipeline dependency.