{
  # Consumes a non-flake input as raw source by setting `flake = false`.
  description = "Consume a non-flake input as raw source";

  inputs = {
    nixpkgs.url = "github:NixOS/nixpkgs/nixos-unstable";

    releaseData = {
      url = "path:./release-data";
      flake = false;
    };
  };

  outputs =
    { self, nixpkgs, ... }:
    let
      system = "x86_64-linux";
      pkgs = import nixpkgs { inherit system; };
      manifest = builtins.fromJSON (builtins.readFile "${self.inputs.releaseData}/manifest.json");

      renderWave = wave: "${wave.stage}: ${toString wave.percentage}% owned by ${wave.owner}";

      reportText = builtins.concatStringsSep "\n" (
        [
          "release: ${manifest.release}"
          "channel: ${manifest.channel}"
          "waves:"
        ]
        ++ map renderWave manifest.waves
      );
    in
    {
      packages.${system}.default = pkgs.writeShellApplication {
        name = "show-raw-release";
        text = ''
          cat <<'EOF'
          ${reportText}
          EOF
        '';
      };

      checks.${system}.release-data =
        pkgs.runCommand "non-flake-input-check"
          {
            releaseName = manifest.release;
            waveCount = toString (builtins.length manifest.waves);
            rawManifest = builtins.readFile "${self.inputs.releaseData}/manifest.json";
          }
          ''
            if [ "$releaseName" != "edge-cache-2026-05" ]; then
              echo "unexpected release name: $releaseName" >&2
              exit 1
            fi

            if [ "$waveCount" != "2" ]; then
              echo "unexpected wave count: $waveCount" >&2
              exit 1
            fi

            printf '%s\n' "$rawManifest" | grep -q '"channel": "canary"'

            echo ok > "$out"
          '';
    };
}