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AgentCompany/builtin-skills/Video-maker/remotion-best-practices/rules/fonts.md
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ZacharyZhang-NY e74dafcd36 Silence render-disposed spam, unbreak bundled skills, drop board wake
Three independently ugly bugs that all fed the same log flood:

* Electron's `WebFrameMain.send` writes every "Render frame was disposed"
  to stderr via `console.error`. When the worker fans a second
  agent-event past a reloading renderer, we produced thousands of
  identical lines and stalled the main loop on stderr I/O. Added a
  `mainFrame.detached` guard so the send is short-circuited before
  Electron's own catch block fires, and installed a targeted filter in
  `suppress-warnings.ts` (now actually imported from the entry point)
  so the specific `console.error("Error sending from webFrameMain:"…)`
  noise never reaches the terminal. Any other payload still surfaces.

* `dispatchAgentMessage` accepted the human-reader sentinel as a wake
  target when an agent replied to `__board__` — `wakeAgentIfPossible`
  then called `db.getAgent("__board__")`, threw, and the dispatcher
  kept repeating on every send. Strip `HUMAN_SENDER_ID` at
  `resolveMessageWakeTargets`, and keep a defense-in-depth guard in the
  heartbeat so a stray caller (future automation fan-out) cannot
  reintroduce the crash.

* Pi's skills loader rejects any SKILL.md whose frontmatter `name`
  diverges from its parent directory. The four bundled `my-writing-style`
  copies declared `name: writing-style-skill`, so every install emitted
  a warning and dropped the skill. They also lived as orphan gitlinks
  (mode 160000 without .gitmodules), and the global `*.md` gitignore
  hid every other SKILL.md from version control. Fixed the frontmatter
  to match the dir, converted the dangling submodules to plain trees,
  and allowlisted `builtin-skills/**/*.md` so a fresh clone carries the
  catalogue instead of silently losing it.
2026-04-20 08:13:48 -04:00

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---
name: fonts
description: Loading Google Fonts and local fonts in Remotion
metadata:
tags: fonts, google-fonts, typography, text
---
# Using fonts in Remotion
## Google Fonts with @remotion/google-fonts
The recommended way to use Google Fonts. It's type-safe and automatically blocks rendering until the font is ready.
### Prerequisites
First, the @remotion/google-fonts package needs to be installed.
If it is not installed, use the following command:
```bash
npx remotion add @remotion/google-fonts # If project uses npm
bunx remotion add @remotion/google-fonts # If project uses bun
yarn remotion add @remotion/google-fonts # If project uses yarn
pnpm exec remotion add @remotion/google-fonts # If project uses pnpm
```
```tsx
import { loadFont } from "@remotion/google-fonts/Lobster";
const { fontFamily } = loadFont();
export const MyComposition = () => {
return <div style={{ fontFamily }}>Hello World</div>;
};
```
Preferrably, specify only needed weights and subsets to reduce file size:
```tsx
import { loadFont } from "@remotion/google-fonts/Roboto";
const { fontFamily } = loadFont("normal", {
weights: ["400", "700"],
subsets: ["latin"],
});
```
### Waiting for font to load
Use `waitUntilDone()` if you need to know when the font is ready:
```tsx
import { loadFont } from "@remotion/google-fonts/Lobster";
const { fontFamily, waitUntilDone } = loadFont();
await waitUntilDone();
```
## Local fonts with @remotion/fonts
For local font files, use the `@remotion/fonts` package.
### Prerequisites
First, install @remotion/fonts:
```bash
npx remotion add @remotion/fonts # If project uses npm
bunx remotion add @remotion/fonts # If project uses bun
yarn remotion add @remotion/fonts # If project uses yarn
pnpm exec remotion add @remotion/fonts # If project uses pnpm
```
### Loading a local font
Place your font file in the `public/` folder and use `loadFont()`:
```tsx
import { loadFont } from "@remotion/fonts";
import { staticFile } from "remotion";
await loadFont({
family: "MyFont",
url: staticFile("MyFont-Regular.woff2"),
});
export const MyComposition = () => {
return <div style={{ fontFamily: "MyFont" }}>Hello World</div>;
};
```
### Loading multiple weights
Load each weight separately with the same family name:
```tsx
import { loadFont } from "@remotion/fonts";
import { staticFile } from "remotion";
await Promise.all([
loadFont({
family: "Inter",
url: staticFile("Inter-Regular.woff2"),
weight: "400",
}),
loadFont({
family: "Inter",
url: staticFile("Inter-Bold.woff2"),
weight: "700",
}),
]);
```
### Available options
```tsx
loadFont({
family: "MyFont", // Required: name to use in CSS
url: staticFile("font.woff2"), // Required: font file URL
format: "woff2", // Optional: auto-detected from extension
weight: "400", // Optional: font weight
style: "normal", // Optional: normal or italic
display: "block", // Optional: font-display behavior
});
```
## Using in components
Call `loadFont()` at the top level of your component or in a separate file that's imported early:
```tsx
import { loadFont } from "@remotion/google-fonts/Montserrat";
const { fontFamily } = loadFont("normal", {
weights: ["400", "700"],
subsets: ["latin"],
});
export const Title: React.FC<{ text: string }> = ({ text }) => {
return (
<h1
style={{
fontFamily,
fontSize: 80,
fontWeight: "bold",
}}
>
{text}
</h1>
);
};
```