# Advanced Topics

Want to know how _netlab_ works behind the scenes? These documents might give you some insight:

```eval_rst
.. toctree::
   :maxdepth: 1
   :caption: Topology Transformations

   transform.md
   groups-pre-transform.md
   vlan-vrf-vxlan-evpn-transform.md
```

```eval_rst
.. toctree::
   :maxdepth: 1
   :caption: Other Advanced Topics

   versioning.md
   validation.md
   module-attributes.md
   vlan-interface-attributes.md
   quirks.md
   tests.md
```