Segment error
One press and this page's render crashes on the spot. You'll see the hand-drawn error page — "Try again" walks you right back here, good as new.
Triggers → error.tsx → reset() → back here
Crash Drill Ground
The site's four fallback screens, no real crash required — press one and see what they look like.
In-app 404
Calls notFound() once, and the page declares itself "not drawn yet". The copy follows the current language.
Triggers → not-found.tsx (trilingual)
Root 404
Visiting a route that does not exist hits the root bilingual 404 — it belongs to the whole site, not to any language.
Visits /this-page-does-not-exist
Segment loading
The slow route dawdles on the server for about 2 seconds. During that navigation you'll see the wave drawing itself.
Go to /lab/experiment-4/slow → loading fallback (~2s)
Root crash
It only appears when the root layout itself crashes — pages below can't reach it, so there is no button. If you ever see it, the whole site is on strike.
Cannot be triggered from a page · verified by code review
Drill notes: like every experiment page, this one ships without the site shell — the customizer's return button sits right above the handle on the left edge. Every fallback screen has its own way back (reset / back to the lab / back home), so nothing traps you.