This page is mode: custom

No sidebar, no table of contents, no auto-rendered title, no prev/next - this page controls 100% of its own layout, full width. The topbar stays, so branding, search, and the theme toggle are still available. It also lives at about.mdx, right next to docs.json itself - not inside docs/ at all - proving docs/ has no special status: any .md/.mdx file anywhere in the project becomes a page the moment it has frontmatter.