# Contribute ## Building and publishing docker images Setup the secrets for DOCKERHUB_USERNAME and [DOCKERHUB_TOKEN](https://hub.docker.com/settings/security) in `https://github.com/YOUR_USERNAME/free-games-claimer/settings/secrets/actions` to be able to run the docker.yml workflows. Check if under Workflow Permissions in `https://github.com/YOUR_USERNAME/free-games-claimer/settings/actions` the radio button is set to "Read and write permissions", otherwise the push to ghcr.io will fail.