Cachix

You can have NixCI automatically pull from, and push to, Cachix.

To activate cachix integration, configure the name and public-key in your flake's nix-ci.cachix configuration.

{
  nix-ci = {
    cachix = {
      name = "foo-bar";
      public-key = "foo-bar.cachix.org-XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX";
    };
  };
}

You will also need to create a cachix auth token and configure it as a secret for your repository on NixCI with the names: CACHIX_AUTH_TOKEN or CACHIX_SIGNING_KEY

nix-ci: # optional
  cachix: # optional
    # Cachix configuration
    # In order to push to the cache as well, the repository needs to have a CACHIX_AUTH_TOKEN or CACHIX_SIGNING_KEY secret.
    # CachixConfiguration
    name: # required
      # cache name
      <string>
    public-key: # required
      # cache public key (for pulling)
      <string>