Add .gitignore to exclude all node packages and lock files

skills/remotion-prompt-video/references/customization.md

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+# Customization Guide
+
+## Adding New Animations
+
+Edit `src/components/Scene.tsx`. Add cases to `getEntranceStyles()` and `getExitStyles()`:
+
+```tsx
+// In getEntranceStyles()
+case "bounce":
+  return {
+    opacity: interpolate(frame, [0, entranceDuration * 0.5], [0, 1], { extrapolateRight: "clamp" }),
+    transform: `translateY(${interpolate(springProgress, [0, 1], [-50, 0])}px)`,
+  };
+```
+
+Then include the new animation name when authoring the VideoScript JSON.
+
+## Adding Background Images
+
+To support background images instead of gradients:
+
+1. Add `backgroundImage?: string` to the `Scene` type in `src/lib/types.ts`
+2. In `Scene.tsx`, add an `<img>` element when `scene.backgroundImage` is set
+3. Include `backgroundImage` URLs in the VideoScript JSON when authoring scenes
+
+## Adding Audio/Music
+
+Remotion supports audio via the `<Audio>` component:
+
+```tsx
+import { Audio } from "remotion";
+
+// In your composition:
+<Audio src="https://example.com/music.mp3" volume={0.3} />
+```
+
+Add a `music` field to the VideoScript type and include it in the composition.