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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I am not really able to understand your first question can you please explain it a bit.

Regarding your second question,  languages/frameworks are not restricted in logs. If you can output your logs to a file it can be pushed to signoz. You can follow this guide <https://signoz.io/docs/userguide/collect_logs_from_file/>

let me try explain. I see the Logs module in signoz support request event log, like below

however, i expect DIY log can be gathered from application self according to log level ( e.g. ERROR、INFO)