diff --git a/plugins/processor/index.mjs b/plugins/processor/index.mjs
index 42c34cd..3f53030 100644
--- a/plugins/processor/index.mjs
+++ b/plugins/processor/index.mjs
@@ -1,4 +1,6 @@
 import { Converter, ReflectionKind, Renderer } from 'typedoc';
+import { MarkdownPageEvent } from 'typedoc-plugin-markdown';
+import { getSourceMetadata } from './metadata.mjs';
 import { writeFileSync } from 'node:fs';
 import { join } from 'node:path';
 import { applyExportEqualsReflections } from './exportEquals.mjs';
@@ -62,6 +64,17 @@ export function load(app) {
     }
   });
 
+  app.renderer.on(MarkdownPageEvent.END, page => {
+    const sourceMeta = getSourceMetadata(page.model);
+
+    if (sourceMeta && sourceMeta.sourceRelativePath) {
+      const source = `https://github.com/webpack/webpack/edit/main/lib/${sourceMeta.sourceRelativePath}`;
+      const frontmatter = `---\n` + `source: ${source}\n` + `---\n\n`;
+
+      page.contents = frontmatter + page.contents;
+    }
+  });
+
   app.renderer.on(Renderer.EVENT_END, () => {
     // doc-kit resolves custom type annotations from this map while generating
     // HTML, so use the final router URLs instead of recomputing paths here.