# HACS

> The Home Assistant Community Store: the custom integration that installed community-made integrations, cards, and themes, until the Marketplace replaced it in 2026.11. Its catalog and tools live on.

Source: https://contributors.home-assistant.io/glossary/hacs/

- In code: `hacs.json`, `hacs/default`, `hacs/action`
- Also: Home Assistant Community Store

For years, users installed HACS as a [custom integration](https://contributors.home-assistant.io/glossary/custom-integration/) to find and update community work. Starting with Home Assistant 2026.11, it is built in as the [Marketplace](https://contributors.home-assistant.io/glossary/marketplace/), and Home Assistant blocks the old custom integration.

The name lives on in what publishers use: the catalog in the [hacs/default](https://github.com/hacs/default) repository, the `hacs.json` file in every repository, and the [HACS action](https://github.com/hacs/action) that validates a repository. The Marketplace uses all three.

## Related terms

- [Marketplace](https://contributors.home-assistant.io/glossary/marketplace/): The place in Home Assistant where users find and install community-made custom integrations, dashboard cards, themes, and template macros. Built in starting with 2026.11.
- [Custom integration](https://contributors.home-assistant.io/glossary/custom-integration/): An integration that is not part of Home Assistant Core, installed by the user in the `custom_components` folder.