Prerequisites

Install the tooling for the binding you plan to use.

Dependency	Version	Required For
Rust	1.86 or newer	Rust builds, local workspace builds, and the Rust core runtime
Python	3.11 or newer	Python bindings, Python tests, and docs tooling
Node.js	24 or newer	Node.js bindings and generated Node.js API docs
`uv`	Refer to Development Setup.	Python environments, docs builds, and repository setup
`just`	Refer to Development Setup.	Repository development, test, build, and docs task aliases
`cargo-nextest`	Refer to Development Setup.	Repository Rust tests and Rust-backed binding tests

The primary documentation track covers Rust, Python, and Node.js. Go and the raw FFI surface are experimental and source-first.

Repository Setup

Clone the repository when you need local source builds or contribution workflows:

git clone https://github.com/NVIDIA/NeMo-Relay.git
cd NeMo-Relay

Install development dependencies for Python and docs workflows:

uv sync

Install Node.js dependencies when you need Node.js builds or generated Node.js API documentation:

npm install --ignore-scripts