flake.nix

{
    description = "Simple overlay flake";

    inputs.nixpkgs.url = "nixpkgs/release-20.03";

    outputs = inputs@{ self, nixpkgs }: {
        apps.wine.x86_64-linux = nixpkgs.legacyPackages.x86_64-linux.wine.override ({
           wineRelease = "staging";
           wineBuild = "wineWow";
        });
    };
}