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Migrating from Standalone Library

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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

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