> For the complete documentation index, see [llms.txt](https://docs.nullify.ai/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.nullify.ai/connectors/github.md).

# GitHub

## Overview

Install the Nullify GitHub App to connect Nullify to your repositories. Nullify works with GitHub.com and GitHub Enterprise. Installation instructions differ for cloud and self-hosted deployments — see the [Enterprise Tier](/enterprise-tier/github-install.md) section for step-by-step guides.

Nullify posts updates asynchronously so developers stay inside their existing workflow.

## What Nullify does with GitHub

* **Pull request reviews.** When a pull request is opened, reopened, or updated, Nullify reviews the changed code and posts its findings back to the pull request as review comments and a **Nullify** check. When a PR is merged or closed, Nullify reconciles the state of any of its own autofix pull requests.
* **Push scanning.** Pushes are scanned, and pushes to the default branch refresh the repository's baseline so dashboards and finding counts stay current.
* **Autofix pull requests.** Nullify opens fix PRs for eligible findings, keeps them green through CI, responds to review comments, and assigns reviewers. See [Remediations](/capabilities/remediations.md).
* **Comment-driven discussion.** Replies on a Nullify pull request — or an `@mention` of Nullify on any PR — are routed back so it can respond in-line.

## Events handled

Nullify subscribes to the events it needs to review and remediate — including push, pull-request, pull-request-review and review-comment, issue-comment, check-run and check-suite, status, repository, and the app installation lifecycle. Settings such as the CI/PR gate, ticketing thresholds, and notification destinations are configured in the Nullify dashboard under **Configure**, not in a file in your repository.

## Support

If you encounter any issues, please contact our support team for assistance.