feat(hotkeys): Refresh landing page with live demos

[KevinVandy]

• Rewrites the Hotkeys landing page. The old copy described features the library doesn't have, such as scope priority and press-and-hold gestures, so the new copy sticks to behavior covered by the library's tests.
• Replaces the hero with a live demo that registers page-wide shortcuts (J/K, a G G sequence, X, ⌘S) plus a note textarea that shows single-key shortcuts being ignored while typing.
• Adds live demos for formatForDisplay across macOS, Windows, and Linux, for useHotkeyHint, and for useHotkeyRecorder with conflict detection. They load client-only through createIsomorphicFn and ClientOnly.
• Bumps @tanstack/react-hotkeys from 0.10.0 to 0.13.0, which the demos need for recordBy, detectConflicts, and layoutMap.

Notes

The demos register real shortcuts on the page, including ⌘S, so the browser's save dialog is suppressed on this route. ⌘K is left alone because the site's search already uses it.

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Summary by CodeRabbit

• New Features
  • Added interactive shortcut demos for page-level actions, shortcut sequences, held-key displays, platform- and layout-aware formatting, shortcut hints, and rebinding with conflict feedback.
  • Added keycap displays in multiple sizes, with pressed-state styling.
  • Updated the landing page with information about typed shortcut strings, platform-specific labels, modifier hints, rebinding, edge cases, and Devtools, alongside editor-style completion and type-error examples.

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Latest commit: 7c6e5a1

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📒 Files selected for processing: 1

• src/components/landing/HotkeysLandingDemos.client.tsx

🚧 Files skipped from review as they are similar to previous changes: 1

• src/components/landing/HotkeysLandingDemos.client.tsx

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📝 Walkthrough

The hotkeys landing page now presents typed-shortcut guidance and four client-side demos. The change adds keycap components, updates the hotkey dependency range, and replaces the previous scope and gesture content.

Changes: Hotkeys landing page

Layer / File(s)	Summary
Hotkey dependency and keycap primitives package.json, src/components/landing/HotkeysKeycap.tsx	The @tanstack/react-hotkeys range changes from ^0.10.0 to ^0.13.0. Keycap and KeyCombo add sized key displays with pressed-state styling.
Landing page content and demo loading src/components/landing/HotkeysLanding.tsx	The page replaces scope and gesture content with typed-shortcut guidance, edge cases, Devtools content, and client-only demos. It adds a static type-safety illustration and loading placeholders.
Shortcut task board src/components/landing/HotkeysLandingDemos.client.tsx	ShortcutLab registers shortcuts for task navigation, completion toggling, save feedback, note insertion, and blur feedback. The demo displays a task board, shortcut legend, and held-key display.
Platform formatting and shortcut hints src/components/landing/HotkeysLandingDemos.client.tsx	FormatLab displays shortcut examples by platform and keyboard layout. DefaultsLab shows shortcut hints for toolbar actions.
Shortcut rebinding src/components/landing/HotkeysLandingDemos.client.tsx	RebindLab records a replacement shortcut for Quick open, handles conflicts and cancellation, and displays recording and activation feedback.

Priority: ⬇️ Low

Estimated code review effort: 3 (Moderate) | ~25 minutes

Change: Other

Sequence Diagram(s)

sequenceDiagram
  participant User
  participant RebindLab
  participant ConflictDetection as Conflict detection
  participant QuickOpen as Quick open registration
  User->>RebindLab: Record a shortcut
  RebindLab->>ConflictDetection: Check conflicts, excluding Quick open
  ConflictDetection-->>RebindLab: Return conflict details or no conflict
  alt No conflict
    RebindLab->>QuickOpen: Replace the registered shortcut
  else Conflict
    RebindLab-->>User: Show rejection message
  end

Loading

Suggested reviewers: tannerlinsley

Merge Risk: ⚪ Minimal · up to 7c6e5

Board navigation and actions remain on visible items after notes are added. No actionable merge blocker remains after normal checks.

Security architecture risk: 🔵 Low · up to d1d40

The new shortcuts affect keyboard behavior across the landing page, but their actions remain local to the demo. Rebinding has scoped registrations and lifecycle cleanup. No new privileged action or external data flow was identified; compatibility across existing shortcut consumers remains incompletely established.

Retained concerns
No architecture-level concerns identified.

Security review details

Security Blast Radius

• inferred — The directly introduced event-handling scope is the visitor's document while the demos are mounted. The dependency upgrade additionally reaches existing application handlers, including bot mutation triggers, but the inspected demo callbacks do not delegate to those handlers or gain their authority.

Trust Boundaries and Controls

• observed — Recording starts through an explicit button action. During an active session, the shared recording guard suppresses application shortcut dispatch, and captured keydown events prevent defaults and propagation. Rebinding conflict detection excludes registrations named Quick open; it is not an authorization control.

Resilience and Maintainability Implications

• observed — Registration removal is handle-specific and removes a target's listeners only after its final registration is removed. Recording guards retain pending key-release protection after completion or cancellation, then clean up after releases or window blur. Sequence progress resets when recording intercepts an event.

Pre-merge checks: 4 · 1

Failed checks: 1 warning

Check name	Status	Explanation	Resolution
Docstring Coverage		Docstring coverage is 7.69% which is insufficient. The required threshold is 80.00%. Docstring coverage is scoped to functions touched by this diff. Analyzed 13 functions across 3 files.	Write docstrings for the functions missing them to satisfy the coverage threshold.

Passed checks: 4 passed

Check name	Status	Explanation
Description Check		Check skipped - CodeRabbit’s high-level summary is enabled.
Title check		The title clearly and concisely describes the main change: updating the Hotkeys landing page and adding live demos.
Linked Issues check		Check skipped because no linked issues were found for this pull request.
Out of Scope Changes check		Check skipped because no linked issues were found for this pull request.

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Status	Name	Latest Commit	Updated (UTC)
✅ Deployment successful! View logs	tanstack-com	7c6e5a1	Oct 14 2026, 05:11 AM

[socket-security]

Review the following changes in direct dependencies. Learn more about Socket for GitHub.

Diff	Package	Supply Chain Security	Vulnerability	Quality	Maintenance	License
	@​tanstack/​react-hotkeys@​0.10.0 ⏵ 0.13.0	+23			+9

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Actionable comments posted: 1

---

• 🪄 Fix CodeRabbit comments on this PR

🤖 Prompt to fix review comments

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Inline comments:
Review comments at @src/components/landing/HotkeysLandingDemos.client.tsx:
- Line 60: Update the setSelected navigation limit so repeated J presses cannot
select beyond the items displayed on the board; alternatively, render every
selectable item. Keep selection and the X action aligned with visible items.

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📒 Files selected for processing (4)

• package.json
• src/components/landing/HotkeysKeycap.tsx
• src/components/landing/HotkeysLanding.tsx
• src/components/landing/HotkeysLandingDemos.client.tsx

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[tannerlinsley]

I checked the selection issue against the current code. The board renders items.slice(0, 6), but J can advance through the entire array. Once there are seven items, it can select an invisible row and X acts on that row.

Let's keep the six-row layout and cap J at Math.min(items.length, 6) - 1. Please check adding enough notes to exceed six rows, then navigating down and toggling the last visible row. That should keep the selection and the action on screen.

[tannerlinsley]

Fixed the visible-row selection bound in 7c6e5a1. I added two notes to the five starting items in the browser, pressed J seven times, and confirmed selection stayed on the sixth visible row. X toggled that row. Typing jkx in the note field left the board selection and completion state unchanged.

The full pnpm test suite passed with the locked dependencies, and the commit hook passed again. CI on the new head and the remaining PR review gates still need to clear before merging.