✨ feat(nerd-font-picker): add Nerd Font Picker extension

[kud]

Description

This PR adds the Nerd Font Picker extension — a Raycast command that lets users browse, search, and copy Nerd Font PUA glyphs (U+E000–U+F8FF) from their locally installed fonts.

Glyphs are rendered on the fly as SVG data URIs using opentype.js, so no image assets are needed. A rich detail panel shows a live preview alongside the glyph name, codepoint, Unicode escape, HTML entity, and the raw character. Copy actions cover the glyph itself, codepoint, name, and Unicode escape sequence, with an option to close Raycast immediately after copying.

A first-run cache is written to ~/.cache/nerd-font-picker/glyphs.json and can be refreshed at any time from the action panel. Icon colour is configurable via a hex preference (default #ffffff).

Screencast

Checklist

• I read the extension guidelines
• I read the documentation about publishing
• I ran npm run build and tested this distribution build in Raycast
• I checked that files in the assets folder are used by the extension itself
• I checked that assets used in the README are located outside the metadata folder if they were not generated with our metadata tool

[greptile-apps]

Greptile Summary

This PR adds the Nerd Font Picker extension (browse/copy Nerd Font PUA glyphs rendered as SVG data URIs) and adds configurable auto-refresh intervals to four ccusage CLI hooks. The ccusage changes are clean and correct. The new extension has one functional bug that will break the extension for a significant portion of users.

• findFont only scans ~/Library/Fonts: Nerd Fonts installed via Homebrew land in /Library/Fonts (system-wide). Users with that setup will always hit "No Nerd Font found" and the extension will be unusable for them.
• Missing metadata/ folder: The extension declares a view-mode command but includes no Raycast-styled screenshots in a metadata/ folder, which is required for store submission.

Confidence Score: 3/5

Not ready to merge — one functional P1 bug blocks users with system-wide Nerd Font installs, and a missing metadata folder blocks store submission.

Two P1 findings: findFont ignores /Library/Fonts causing 'No Nerd Font found' for Homebrew users, and the missing metadata/ folder prevents store publishing. Both must be resolved before merge.

extensions/nerd-font-picker/src/utils.ts (findFont font directory search), extensions/nerd-font-picker/ (missing metadata/ folder)

Important Files Changed

Filename	Overview
extensions/nerd-font-picker/src/utils.ts	Core utility file for font scanning, SVG rendering, and cache management; findFont only searches ~/Library/Fonts, breaking the extension for users with system-wide Nerd Font installations. Also contains an exported useGlyphs function that is never used.
extensions/nerd-font-picker/src/list.tsx	Main Raycast list component; manually types the getPreferenceValues call with an inline interface instead of using the auto-generated Preferences type. Otherwise the component logic, detail panel, and action panel are well-structured.
extensions/nerd-font-picker/package.json	Extension manifest; @raycast/utils is listed as a runtime dependency but is never imported in any source file. Also the extension is missing a metadata/ folder required for store submission (view-type command).
extensions/ccusage/src/hooks/useCCUsageDailyCli.ts	Adds auto-refresh via setInterval + useEffect driven by a user preference; the same pattern is duplicated across all four CLI hooks cleanly.
extensions/ccusage/src/hooks/useCCUsageMonthlyCli.ts	Identical auto-refresh addition as useCCUsageDailyCli; implementation is correct and cleanup is handled.
extensions/ccusage/src/hooks/useCCUsageSessionCli.ts	Identical auto-refresh addition; correct implementation with cleanup.
extensions/ccusage/src/hooks/useCCUsageTotalCli.ts	Identical auto-refresh addition; correct implementation with cleanup.

Prompt To Fix All With AI

This is a comment left during a code review.
Path: extensions/nerd-font-picker/src/utils.ts
Line: 29-37

Comment:
**`findFont` misses system-wide font directories**

`findFont` only reads `~/Library/Fonts` (user-level). Nerd Fonts installed via Homebrew (`brew install --cask font-*`) are placed in `/Library/Fonts`, so any user with a system-wide installation will always receive the "No Nerd Font found" error. The search should fall back through at least `/Library/Fonts`.

```typescript
const findFont = (): string => {
  const dirs = [
    join(homedir(), "Library/Fonts"),
    "/Library/Fonts",
    "/System/Library/Fonts",
  ]
  for (const dir of dirs) {
    if (!existsSync(dir)) continue
    const files = readdirSync(dir)
    for (const suffix of ["NerdFontMono-Regular.ttf", "NerdFont-Regular.ttf"]) {
      const match = files.find((f) => f.endsWith(suffix))
      if (match) return join(dir, match)
    }
  }
  return ""
}
```

How can I resolve this? If you propose a fix, please make it concise.

---

This is a comment left during a code review.
Path: extensions/nerd-font-picker/src/list.tsx
Line: 29

Comment:
**Manual `Preferences` type in `getPreferenceValues`**

The inline type `{ iconColor: string }` is a manual definition of the preference shape. Raycast auto-generates `Preferences` (and `Preferences.List`) in `raycast-env.d.ts` at build time — manually typing this can go out of sync with `package.json` and causes a lint warning.

```suggestion
  const { iconColor } = getPreferenceValues<Preferences.List>()
```

**Rule Used:** What: Don't manually define `Preferences` for `get... ([source](https://app.greptile.com/review/custom-context?memory=d93fc9fb-a45d-4479-a6a4-b1b4af98ebc8))

How can I resolve this? If you propose a fix, please make it concise.

---

This is a comment left during a code review.
Path: extensions/nerd-font-picker/package.json
Line: 34

Comment:
**`@raycast/utils` listed as dependency but never imported**

Neither `src/list.tsx` nor `src/utils.ts` imports anything from `@raycast/utils`, making it an unused dependency that bloats the bundle and install time. Remove it unless a future use is planned.

**Rule Used:** What: Every dependency listed in package.json must... ([source](https://app.greptile.com/review/custom-context?memory=bffc60eb-f9f2-4219-b804-76e29e267d43))

How can I resolve this? If you propose a fix, please make it concise.

---

This is a comment left during a code review.
Path: extensions/nerd-font-picker/src/utils.ts
Line: 145-153

Comment:
**`useGlyphs` is dead code**

`useGlyphs` is exported but never imported in `list.tsx` or any other file. It's also not a React hook (it has no hooks inside it and the `use` prefix is misleading). This should be removed or actually wired up if it was meant to replace the imperative load logic in the component.

How can I resolve this? If you propose a fix, please make it concise.

_{Reviews (1): Last reviewed commit: "📝 docs(nerd-font-picker): add extension..." | Re-trigger Greptile}

[raycastbot]

Congratulations on your new Raycast extension! 🚀

We're currently experiencing a high volume of incoming requests. As a result, the initial review may take up to 10-15 business days.

Once the PR is approved and merged, the extension will be available on our Store.