migrate-from-satori

name	migrate-from-satori
description	Guides and automated instructions for migrating from Vercel's Satori, next/og, or @vercel/og to Takumi.

Migrate Satori / next/og to Takumi

Upgrade instructions. Replace Satori layout limitations with Takumi advanced features.

Feature Differences

Feature	Satori	Takumi
Primary Output	SVG only (needs resvg wrapper)	PNG, JPEG, WebP, SVG, GIF, APNG
CSS Layout	Flexbox only	Flexbox, CSS Grid, block, inline, float
Advanced CSS	✗	Grid, pseudo-elements, backdrop-filter, clip-path, text-fit, offset-path
Fonts	Manual Buffer array	System fonts, URLs, local paths, Buffers
Tailwind	Limited / wrapper needed	Native Tailwind v4 (tw/class, arbitrary values)

Code Changes

Next.js ImageResponse

Before:

import { ImageResponse } from "next/og";
// ... returns new ImageResponse(...)

After:

import { ImageResponse } from "takumi-js/response";
// ... returns new ImageResponse(...)

Direct Rendering

Before:

import satori from "satori";
import { Resvg } from "@resvg/resvg-js";
const svg = await satori(element, { width, height, fonts: [{ name: "A", data: buf }] });
const png = new Resvg(svg).render().asPng();

After:

import { render } from "takumi-js";
const png = await render(element, {
  width,
  height,
  fonts: [{ name: "A", url: "https://url.woff2" }],
});

Upgrades to Apply

• CSS Grid: Convert complex flex layouts to tw="grid grid-cols-12 gap-4".
• CSS Variables & Custom Selectors: Embedded <style> rules, :is(), :where(), ::before, ::after work natively.
• Auto Font Handling: Drop manual loading scripts. Rely on system fonts or CDN URLs.
• Advanced Visuals: Use backdrop-filter, clip-path, and blend modes directly in styling.