# dfe-transform-vrl documentation

> The architecture and design of dfe-transform-vrl.

- [Architecture](/v/2.2.2/dfe-transform-vrl/architecture.md)
- [dfe-transform-vrl -- Design Document](/v/2.2.2/dfe-transform-vrl/internals.md)
- [config-schema.yaml](https://github.com/hyperi-io/dfe-transform-vrl/blob/01ed6768130469a62de42311c467f9b9e85e82af/docs/config-schema.yaml) -- the configuration as a JSON Schema (YAML)
- [config-schema.json](https://github.com/hyperi-io/dfe-transform-vrl/blob/01ed6768130469a62de42311c467f9b9e85e82af/docs/config-schema.json) -- the configuration as a JSON Schema (JSON)
- [capability-catalog.yaml](https://github.com/hyperi-io/dfe-transform-vrl/blob/01ed6768130469a62de42311c467f9b9e85e82af/docs/capability-catalog.yaml) -- what the app can do, as a catalogue (YAML)
- [capability-catalog.json](https://github.com/hyperi-io/dfe-transform-vrl/blob/01ed6768130469a62de42311c467f9b9e85e82af/docs/capability-catalog.json) -- what the app can do, as a catalogue (JSON)