> ## Documentation Index > Fetch the complete documentation index at: https://docs.wearo.io/llms.txt > Use this file to discover all available pages before exploring further. # Async loading patterns > Load the Wearo widget asynchronously without race conditions. # Async loading patterns ## When to use the queue pattern Use it when: * You add `async` or `defer` to the ` ``` The loader automatically drains the queue at boot — `init()` will be called exactly once, regardless of load order. ## GTM Custom HTML tag In GTM, use the queue pattern so the config is ready before the script executes: ```html theme={"dark"} ``` No other changes needed — the widget API is identical whether loaded via GTM or a direct script tag.