# GitHub Actions
To use the [GitHub Actions cache](https://docs.github.com/en/actions/using-workflows/caching-dependencies-to-speed-up-workflows), you need to set `SCCACHE_GHA_ENABLED` to `on` to enable it.
By changing `SCCACHE_GHA_VERSION`, we can purge all the cache.
This cache type will need tokens like `ACTIONS_CACHE_URL` and `ACTIONS_RUNTIME_TOKEN` to work. You can set these environmental variables using the following step in a GitHub Actions workflow.
```yaml
- name: Configure sccache
uses: actions/github-script@v7
with:
script: |
core.exportVariable('ACTIONS_CACHE_URL', process.env.ACTIONS_CACHE_URL || '');
core.exportVariable('ACTIONS_RUNTIME_TOKEN', process.env.ACTIONS_RUNTIME_TOKEN || '');
```
## Behavior
In case sccache reaches the rate limit of the service, the build will continue, but the storage might not be performed.