hanzo.ai/components/products/Start.tsx

import { ArrowRight } from 'lucide-react'
import { YStack } from '@/components/ui'
import { Action } from '@hanzo/ui/marketing'
import { Line } from '@/components/type'
import { openable } from '@/lib/repos'

/**
 * The last thing a product page says: read it, or read the source.
 *
 * Eight pages carried this markup character-for-character and differed only in
 * the heading and the two addresses — which is a component with three props,
 * written eight times. The heading IS a prop rather than "Get started with
 * {name}", because four of the eight say something better than that: "Load a
 * table and ask it something", "Read the protocol", "Read before you run it".
 * Deriving it from the name would have quietly replaced those four sentences.
 *
 * The two controls are `Action`, this site's one button shape in its two
 * weights, rather than eight utilities restating it. The hover is the reason it
 * has to be a rule: it is the one thing neither a style attribute nor a gui prop
 * can say here.
 *
 * THE NAME IS `action`, NOT `hz-action`. This document's own rules dropped the
 * prefix and this call site kept it, so the class matched nothing in 209KB of
 * compiled CSS and both controls shipped as bare text — measured at 20px tall,
 * no outline, no fill, under the 24px floor the site states for a tap target.
 * A dead class name reads exactly like a live one in source; only the
 * stylesheet can tell you which it is.
 *
 * `justifyContent` is the one thing stated on top of the rule. Below `sm` the
 * pair is a column and each control stretches the measure, so a label with
 * nothing centring it sits at the left edge of a full-width button.
 */
const CENTRED = { justify: "center" } as const

/**
 * `docs` is optional: a product docs publishes no page for has no docs button,
 * and a caller that passes nothing gets the source alone rather than a link to
 * a 404. `lib/constants/products-metadata` is where which-products-have-a-page
 * is answered, one verified URL at a time.
 *
 * `repo` is optional for the same reason, and a private one links the org: its
 * own GitHub URL answers a reader with a 404.
 */
export function Start({ title, docs, repo }: { title: string; docs?: string; repo?: string }) {
  return (
    <YStack
      render="section"
      py={64}
      borderTopWidth={1}
      borderColor="var(--neutral-800)"
    >
      <YStack
        width="100%"
        maxW={768}
        mx="auto"
        px={16}
        $platform-web={{ textAlign: 'center' }}
      >
        <Line render="h2" size="x2" weight="700" marginBottom={16}>
          {title}
        </Line>
        <YStack justify="center" gap={12} $sm={{ flexDirection: 'row' }}>
          {docs ? (
            <Action href={docs} target="_blank" rel="noopener noreferrer" fill {...CENTRED}>
              Read the docs <ArrowRight width={16} height={16} />
            </Action>
          ) : null}
          {repo ? (
            <Action href={openable(repo, 'https://github.com/hanzoai')} target="_blank" rel="noopener noreferrer" {...CENTRED}>
              View on GitHub
            </Action>
          ) : null}
        </YStack>
      </YStack>
    </YStack>
  )
}

export default Start