SigNoz is an open-source APM. It helps developers monitor their applications & troubleshoot problems, an open-source alternative to DataDog, NewRelic, etc.

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According to this <https://signoz.io/blog/opentelemetry-nextjs/|post>, after implementing OpenTelemetry, I can spin up the service with:
```node tracing.js```
From this <https://nextjs.org/docs/pages/building-your-application/configuring/custom-server|post>, the custom-server method will remove important optimizations, that's why I am wondering if there is a way to implement open telemetry without this custom-server? Because for production, the app is running with:
```next build
next start -p $PORT```
How to build the app and use tracing.js as an entrypoint with the build version? For node-js, I can use the following code in node.js
```node -r tracing.js index.js```
can I achieve a similar goal with NextJS?

You can initialize tracing.js in your main file

&gt; So you need to import `tracing.js` in your main application. The `import ./tracing.js` should be the first line of your application code and initialize it before any other function. Here’s the <https://github.com/SigNoz/sample-nodejs-app/tree/init-tracer-main|sample github repo> which shows the implementation.