Measured entry

efferd-not-found-2

background-effectgradient-glowmotion on file

A full-screen not-found route with centered recovery actions and continuously drifting gradient orbs. It ships as a shadcn registry block, built from Tailwind utility classes, Motion animation, Lucide icons, and the shadcn Button and Empty primitives.

Specimen
Motion capture of the mounted demo, recorded by the harness. No audio track.
Harness screenshot of efferd-not-found-2 at 375 pixels wide
Harness screenshot at 375 pixels wide. No horizontal overflow recorded.
Harness screenshot of efferd-not-found-2 at 768 pixels wide
Harness screenshot at 768 pixels wide. No horizontal overflow recorded.
Harness screenshot of efferd-not-found-2 at 1440 pixels wide
Harness screenshot at 1440 pixels wide. No horizontal overflow recorded.

Measured

Every value below was written by the harness on the run that produced the frames above. None of it is derived from the prose.

Harness measurements recorded for efferd-not-found-2
BuildOK
MountOK
Console errors0
Uncaught page errors0
Horizontal overflowclean at 375, 768, 1440
Axe critical0
Axe serious0
Axe moderate0
Axe minor0
Gzip marginal73.6 KB (139.0 KB build, 65.4 KB baseline)
Bare modeFAIL
Provider requiredNO
Demo usedwritten from the component source API

What the harness recorded

BARE BUILD

✗ Build failed in 1m 28s
error during build:
[vite:load-fallback] Could not load <sandbox>/src/lib/utils (imported by src/components/ui/empty.tsx): ENOENT: no such file or directory, open '<sandbox>/src/lib/utils'

Verdict

A credible drop-in for an existing shadcn app: it builds, mounts cleanly, and adapts across the tested layouts. It needs a shadcn-style setup, so plain React projects should expect integration work. Replace the placeholder links and add reduced-motion handling before release.

Use it if

  • You want a dedicated not-found screen with clear home and discovery actions.
  • Your app already uses shadcn primitives and can absorb Motion for ambient animation.
  • A full-viewport gradient treatment fits the product's visual language.

Skip it if

  • You need a lightweight static error state without an animation dependency.
  • Your design system does not use Tailwind utilities or shadcn component conventions.
  • You require motion to stop automatically for reduced-motion preferences without modifying the source.
  • You need production-ready navigation targets, since both supplied links are placeholders.

Install

Installation record for efferd-not-found-2
Declared dependenciesmotion, radix-ui
Missing on installnone
Bare installfails once the shadcn-style helpers are removed, so it needs that setup
Providerno provider required in the harness

In a non-shadcn project, add Tailwind with the expected theme variables and path alias, install Motion and Lucide React, then supply compatible Button and Empty primitives. The Button must support child composition and an outline variant, and the shared utility helper used by the primitives must exist.

Source and credit

This page is a review, not a copy. The component source lives with its author and this site does not republish it. Read the license before you use anything.

Alternatives

Other published entries for the background-effect pattern, ordered by what they measured: mounts first, then clean axe scans, then bare-mode passes, then the smaller bundle.