# Internals

````{only} diataxis
```{toctree}
:titlesonly:

/daemon-behavior
/environment
/syscall-interception
User namespace setup </userns-idmap>
```
````

## Related topics

```{only} diataxis
How-to guides:

- {ref}`troubleshoot`

```


````{only} topical
```{toctree}
:maxdepth: 1

/daemon-behavior
Debug LXD </debugging>
/environment
/syscall-interception
User namespace setup </userns-idmap>
Configuration option index </config-options>
```
````
