> For the complete documentation index, see [llms.txt](https://docs.orbs.network/v3/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.orbs.network/v3/orbs-lambda/step-by-step-overview/development-requirements.md).

# Development Requirements

## Install Node.js

Node.js is an execution engine that runs JavaScript programs. Installing it locally will allow you to test your lambda function on your machine before deployment.

Instructions: <https://docs.npmjs.com/downloading-and-installing-node-js-and-npm>

## Install Git

Git is the source control manager used by the popular open source hub GitHub. Install it locally to allow you to maintain versions of your code and push them to Orbs.

Instructions: <https://github.com/git-guides/install-git>

## GitHub account

As part of the deployment process, you will need to open a PR (pull request) to Orbs open source GitHub repo. This will normally require you to have a free GitHub account.

Instructions: <https://github.com/signup>


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