Add Maintenance Mode

[Nishchit14]

Goals

Ensure users see a dedicated maintenance page with a clear message when Maintenance Mode is enabled.

Non-Goals

No response

Background

Most SaaS platforms display a maintenance notice to inform users and avoid confusion during downtime. Currently, there's no fallback experience in Nextjs—users face broken pages or unclear errors, which leads to poor UX. This feature ensures clear communication and improves trust during updates or outages.

Proposal

The Nextjs should check a maintenance_mode flag at the middleware, config, or routing level. If true, it should redirect all pages to a static, customizable maintenance page.

[Netail]

I would suggest doing this before traffic reaching your nextjs deployment. If the maintenance feature flag has been toggled; Route all traffic to a different container or return a static uploaded page directly (thus traffic never reaching your deployment anymore)

If nextjs has to check a config, you need to do a redeployment to trigger maintenance mode, which is a kind of weird