Replace Elysia with bun.serve for hot reloading and static serving

bun_plugins/markdown-loader.ts

@@ -0,0 +1,19 @@
+import type {BunPlugin} from 'bun';
+import { marked } from 'marked';
+
+const markdownLoader: BunPlugin = {
+	name: 'markdown-loader',
+	setup(build) {
+		// Plugin implementation
+		build.onLoad({filter: /\.md$/}, async args => {
+			const text = await Bun.file(args.path).text();
+			const html = marked.parse(text);
+			return {
+				contents: `export default ${html};`,
+				loader: 'html',
+			};
+		});
+	},
+};
+
+export default markdownLoader;