DO NOT MERGE feat(homepage): reframe homepage around "self-driving" positioning

[jamesefhawkins]

THIS JUST EXISTS FOR CORY TO COPY SOME COPY OUT OF IT!!! DO NOT MERGE

just these two sections are worth lifting the copy from imho:

What & why

Following the marketing meeting on the self-driving strategy, this reframes the homepage (test variant) away from a product-suite/data-stack story toward the new positioning: PostHog as autonomous agents that do the work.

Changes

• Hero (Home/Test/index.tsx): headline → "PostHog makes your product self-driving." with proactive, multi-surface sub-copy (Slack, PostHog on Desktop, Scouts). Headline reserves space so it no longer overlaps the floating Slack card.
• Carousel (HeroCarousel/homeSlides.tsx): reframed to Access surfaces (Slack + Desktop), Scouts, and Skills.
• Body (contents/index.mdx): data-stack section rewritten as a "context warehouse" (events/recordings/traces pulled via SDKs, imports, MCPs to feed agents, Skills, and products); pricing section removed; added a self-driving bullet to Why PostHog?.
• SEO description updated.
• gatsby-node.ts: alias the upstream-moved scenes/onboarding/shared/OnboardingDocsContentWrapper to the posthog.com shim — fixes a current build break on master (the monorepo moved this file under /shared/).

⚠️ Do not merge as-is

This branch also includes a local preview hack: a true || override in Home/Test/index.tsx and ProductsTest.tsx that force-enables the homepage-slack-test experiment for all users. It's here so the copy can be previewed; revert those two true || lines before merging so the experiment flag keeps controlling exposure. (ProductsTest.tsx contains only that override.)

Testing

Runs locally via pnpm start (Node 22) at localhost:8001; homepage compiles cleanly and renders the new copy.

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Created with PostHog Code

[github-actions]

Deploy preview

Status	Details	Updated (UTC)
🟢 Ready	View preview	Jun 22, 2026 09:31PM

[github-actions]

Vale prose linter → found 0 errors, 2 warnings, 0 suggestions in your markdown

Full report → Copy the linter results into an LLM to batch-fix issues.

Linter being weird? Update the rules!

contents/index.mdx — 0 errors, 2 warnings, 0 suggestions

Line	Severity	Message	Rule
72:161	warning	'MCPs' is a possible misspelling.	PostHogBase.Spelling
75:20	warning	Capitalize 'Error Tracking' for PostHog's product. Use 'error tracking' for the general industry concept.	PostHogBase.ProductNames

[github-actions]

Bundle report

Total JS (gzip)

6.21 MiB (-0.0 KiB / -0.0%)

Eager graph (static-import closure per entrypoint)

Entrypoint	Eager size	Budget	Modules
✅ app	24.11 MiB (+0.7 KiB / +0.0%)	report-only	5502

Largest modules in the app closure

Module	Size
css ./node_modules/.pnpm/css-loader@5.2.7_webpack@5.101.3/node_modules/css-loader/dist/cjs.js??ruleSet[1].rules[8].oneOf[1].use[1]!./node_modules/.pnpm/postcss-loader@4.3.0_postcss@8.5.6_webpack@5.101.3/node_modules/postcss-loader/dist/cjs.js??ruleSet[1].rules[8].oneOf[1].use[2]!./src/styles/global.css	710.2 KiB
./src/components/Stickers/Stickers.tsx	696.4 KiB
./.cache/caches/gatsby-plugin-mdx/mdx-scopes-dir/31a094f140f119e73085d847ae81b99b.js + 2 modules	519.2 KiB
./node_modules/.pnpm/@radix-ui+react-icons@1.3.2_react@18.3.1/node_modules/@radix-ui/react-icons/dist/react-icons.esm.js	481.4 KiB
./node_modules/.pnpm/@codemirror+view@6.38.2/node_modules/@codemirror/view/dist/index.js	458.1 KiB
./node_modules/.pnpm/rehype-raw@7.0.0/node_modules/rehype-raw/lib/index.js + 29 modules	395.1 KiB
./node_modules/.pnpm/@posthog+icons@0.36.6_react-dom@18.3.1_react@18.3.1__react@18.3.1/node_modules/@posthog/icons/dist/posthog-icons.cjs.js	364.8 KiB
./node_modules/.pnpm/@posthog+icons@0.36.6_react-dom@18.3.1_react@18.3.1__react@18.3.1/node_modules/@posthog/icons/dist/posthog-icons.es.js	354.8 KiB
./src/hooks/useCustomers.tsx + 54 modules	353.9 KiB
./node_modules/.pnpm/react-markdown@8.0.7_@types+react@16.14.66_react@18.3.1/node_modules/react-markdown/lib/react-markdown.js + 88 modules	351.4 KiB
./node_modules/.pnpm/cloudinary-core@2.14.0_lodash@4.17.21/node_modules/cloudinary-core/cloudinary-core.js	281.9 KiB
./node_modules/.pnpm/@codesandbox+sandpack-react@2.20.0_react-dom@18.3.1_react@18.3.1__react@18.3.1/node_modules/@codesandbox/sandpack-react/dist/index.mjs	266.6 KiB
./src/components/ProductComparisonTable/index.tsx + 114 modules	264.0 KiB
./node_modules/.pnpm/d3@7.9.0/node_modules/d3/src/index.js + 208 modules	247.4 KiB
./src/components/Pricing/PricingSlider/Slider.tsx + 87 modules	239.9 KiB

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Eager-graph budgets are report-only until a baseline is established. Sizes are gzip of public/**/*.js; eager size is webpack module source bytes.