I'm just starting the implementation of SigNoz but I am a bit lost, I can see that there are some default services (probably for demo purposes) where do I remove them? where do I add my own?

where do I remove them?

https://signoz.io/docs/operate/docker-standalone/#remove-the-sample-application

where do I add my own

You need to instrument your application with OpenTelemetry SDKs. Did you do anything related to that?

I haven't started with the OpenTelemetry yet, so if I got it right, these sample services are hardcoded but when I point the Opentelemetry data to my server I won't have to touch the app's code, right?

these sample services are hardcoded

I wouldn’t say hardcoded because you can remove them by remove the hotrod.

when I point the Opentelemetry data to my server I won’t have to touch the app’s code, right?

I will still need to set them up in the deploy/docker/clickhouse-setup/docker-compose.yaml

You will configure an endpoint to export the data (SigNoz collector receiver). You don’t have to change anything in the compose file.

than you so much, I will try and get back to you if I have further questions

Which example are you referring to?

and the original one on port 3000

this was hello-world like default to test whether nextjs is installed and working.

this on port 8080

This is an acutal example server application used to demonstrate the instrumentation and exporting data to SigNoz.