These instructions cover building and running VA.gov locally, including configuring any required dependencies.

Setting up your local frontend environment — A step-by-step guide to setting up the VA.gov frontend environment locally.
Running VA.gov locally — A guide to running VA.gov on your local machine.
Using GitHub Codespaces — Github Codespaces provide an Integrated Development Environment (IDE) that is accessible entirely in a web browser. It is essentially a web based version of VS Code running on a cloud based virtual machine.