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Switch rehype-mermaid to client-side rendering to fix Astro 6 OOM #10070

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Switch rehype-mermaid to client-side rendering to fix Astro 6 OOM #10070

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Copilot Mar 18, 2026
102ded9
fix: reduce website build memory by switching rehype-mermaid to clien…
Copilot Mar 18, 2026
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14 changes: 13 additions & 1 deletion website/astro.config.mjs
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Original file line number Diff line number Diff line change
Expand Up @@ -49,6 +49,18 @@ export default defineConfig({
src: "1ds-init.js",
},
},
{
tag: "script",
attrs: {
type: "module",
},
content: `const els = document.querySelectorAll("pre.mermaid");
if (els.length > 0) {
const { default: mermaid } = await import("https://cdn.jsdelivr.net/npm/mermaid@11/dist/mermaid.esm.min.mjs");
mermaid.initialize({ startOnLoad: false });
await mermaid.run({ nodes: els });
}`,
},
],
social: [
{
Expand All @@ -70,7 +82,7 @@ export default defineConfig({
// @ts-expect-error wrong type
remarkPlugins: [remarkHeadingID],
rehypePlugins: [
rehypeMermaid,
[rehypeMermaid, { strategy: "pre-mermaid" }],
[rehypeAstroRelativeMarkdownLinks, { base, collectionBase: false, trailingSlash: "always" }],
],
shikiConfig: {
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2 changes: 1 addition & 1 deletion website/package.json
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Expand Up @@ -8,7 +8,7 @@
"dev": "astro dev",
"start": "astro dev",
"build": "tsx ./.scripts/build.ts",
"build:web": "pnpm regen-all-packages-docs && astro check --minimumFailingSeverity hint && NODE_OPTIONS=\"--max-old-space-size=8192\" astro build",
"build:web": "pnpm regen-all-packages-docs && astro check --minimumFailingSeverity hint && astro build",
"preview": "astro preview",
"astro": "astro",
"update-playground-versions": "tsx ./.scripts/update-playground-versions.ts",
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