feature: serverus modularly serves up a directory as an HTTP server

tests/www/echo/___input/index.ts

@@ -0,0 +1,8 @@
+export function GET(_req: Request, meta: Record<string, any>): Response {
+	return new Response(meta.params.input ?? '', {
+		status: 200,
+		headers: {
+			'Content-Type': 'text/plain'
+		}
+	});
+}