> For the complete documentation index, see [llms.txt](https://bus.node-ts.com/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://bus.node-ts.com/guide/loggers.md).

# Loggers

**@node-ts/bus-core** by default uses the [debug](https://www.npmjs.com/package/debug) library in order to log details to STDOUT. All log messages that originate from this library are named with a `@node-ts/` prefix. In order to get full debug output, set the `DEBUG` environment variable to `@node-ts/*`

For example:

```shell
DEBUG="@node-ts/*" npm run dev
```

If you want to use your own logging provider and change the output format etc, this can be changed with any other logger by providing an adapter layer for a [custom logger](/guide/loggers/custom-loggers.md).