Trace
FREEWhere a number comes from, in one line that opens a slip.
Every shadcn style · one file
v2.0 · Updated Oct 13Live preview
pnpm dlx shadcn@latest add https://notchset.dev/r/trace.jsonInstallation
pnpm dlx shadcn@latest add https://notchset.dev/r/trace.jsonFree, no account or key. One command for every shadcn style. With the @notchset registry added, @notchset/<name> works too.
Works with React 18.3 or 19 on Tailwind CSS v4, in any shadcn project. What's tested
Install by hand
- 1. Add the packages
pnpm add @base-ui/react@^1 lucide-react@^1 - 2. Copy the files to these paths (the source, or save them all as a .zip)
- components/ui/notchset/trace.tsx
- lib/notchset/popup.ts
- lib/notchset/portal.ts
- 3. No stylesheet needed.
- 4. Install what it builds on first: shadcn's cn helper (lib/utils.ts, from npx shadcn init), the theme foundation (its tokens and base styles)
Styles didn't apply?
The CLI adds the styles to the CSS file named in components.json (tailwind.css). Check that it points at your global stylesheet, that the project uses Tailwind CSS v4, and that the file is imported in your root layout. Installed by hand: paste styles.css into that file.
Usage
Import it and pass your content. The props that matter most are listed next.
Example
"use client";
import { Trace } from "@/components/ui/notchset/trace";
export default function TraceDemo() {
return (
<div className="flex flex-col items-start gap-2">
<span className="text-[44px] leading-none tabular-nums">61 <span className="text-[16px] text-[var(--ns-ink-2)]">ms</span></span>
<Trace line={["Ring", "07:02"]} rows={[["Source", "Sleep ring"], ["Measured", "Last night · synced 07:02"], ["Read against", "Your usual 47–55 ms"], ["Range set by", "Your last 21 nights"]]} title="HRV: where this number comes from" />
</div>
);
}Anatomy
Built fromPopup placementPortal
Source
components/ui/notchset/trace.tsx
Loading the code
Props
line–string[]the line's parts, said in order
rows–[string, React.ReactNode][]the slip's rows: what, then the words
title"Where this number comes from"stringwhat the slip is about ("HRV, last night")
interactivetruebooleanthe line alone, not a button
tone"default""default" | "deep" | "legible"on a dark surface, or legible (ink-2) where it carries weight
For coding agents
Give your coding assistant the Markdown guide instead of screenshots.
Where agents read it
- Guide for this component: https://notchset.dev/md/trace.md
- Every component, for tools without MCP: /llms.txt
- MCP server:
https://notchset.dev/api/mcp(setup)
Changelog
v2.0.0 · 2026-10-13
Released with the Notchset system.
Used in
The same file, at work in a finished app. Open it live and find it on its pages.
