Markdown Integration

# System Architecture

The diagram below is generated automatically from source:

```datro
#!DATRO 1.0

meta { title: "Auth Service" }

node client  { type: web      label: "Browser" }
node api_gw  { type: gateway  label: "API Gateway" }
node auth    { type: service  label: "Auth Service" }
node user_db { type: database label: "User DB" }

edge client -> api_gw  { kind: http  label: "POST /login" }
edge api_gw -> auth    { kind: http }
edge auth   -> user_db { kind: query }

layout { direction: LR  algo: dagre }

theme {
  palette { gateway: "#FFD0D0"  service: "#D0E8FF"  database: "#FFE8C0" }
  accessibility { min_contrast: AA }
}
```

> Rendered inline by the datro remark plugin.

```datro id="auth-flow"
#!DATRO 1.0
node a { type: service label: "A" }
node b { type: service label: "B" }
edge a -> b { kind: http }
```

npm install datro remark remark-html

// remark.config.mjs
import remarkDatro from "datro/remark";

const config = {
  plugins: [
    // Transforms ```datro blocks to inline SVG
    [remarkDatro, { format: "svg" }],
  ],
};

export default config;

// next.config.mjs
import remarkDatro from "datro/remark";
import createMDX from "@next/mdx";

const withMDX = createMDX({
  options: {
    remarkPlugins: [[remarkDatro, { format: "svg" }]],
  },
});

export default withMDX({
  pageExtensions: ["js", "jsx", "ts", "tsx", "md", "mdx"],
});

import MarkdownIt from "markdown-it";
import datroPLugin from "datro/markdown-it";

const md = new MarkdownIt();
md.use(datroPLugin, { format: "svg" });

const html = md.render(source);

// vite.config.ts
import { defineConfig } from "vite";
import mdPlugin from "vite-plugin-markdown";
import remarkDatro from "datro/remark";

export default defineConfig({
  plugins: [
    mdPlugin({
      remarkPlugins: [[remarkDatro, { format: "svg" }]],
    }),
  ],
});

# Render all datro blocks in a markdown file to SVG
datro md render docs/architecture.md --out-dir public/diagrams

# Validate all blocks without rendering (fast, no Graphviz needed)
datro md check docs/architecture.md