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# Migrating from Standalone Library

Data Designer configurations are mostly portable between the standalone library and the NeMo Platform plugin.

## What Usually Stays the Same

Most configuration code can stay unchanged:

* Column definitions
* Prompt templates and Jinja2 references
* Constraints and profilers
* Model aliases and inference parameters
* Processors and generated dataset schema

## What Changes Slightly

Most "locally-defined" aspects of Data Designer workloads have NeMo Platform equivalents:

\| Area | Standalone library | NeMo Platform |
\| **Inference** | Define model providers in local YAML config files. | Register model providers through the Models and Inference Gateway services. |
\| **Secrets** | Reference local environment variables or provide plaintext secret values. | Create secrets using the Secrets API. |
\| **Seed data** | Reference local files or pass DataFrames. | Upload local seed data to the Files API or use HuggingFace. |
\| **Personas** | Download Nemotron Personas datasets locally. | Create Filesets for Nemotron Personas using `nemo data-designer personas make-fileset`. |

## What Isn't Supported

Some features of the standalone Data Designer library are not supported on NeMo Platform at all:

* Custom column types / plugins
* Local callable validators
* Jinja `NATIVE` rendering engine
* MCP Tools
* Workflow chaining

## Getting Help

* **CLI:** See [Data Designer CLI](/documentation/design-synthetic-data/cli) for configuration sources and personas commands.
* **Tutorials:** Follow the [tutorials](/documentation/design-synthetic-data/tutorials) for hands-on examples.
* **Library Docs:** Refer to the [open-source library documentation](https://docs.nvidia.com/nemo/datadesigner/v0.9.1/getting-started/welcome) for configuration details.