vmimages/pkgs/npiperelay/flake.nix

{
  description = "A flake for building My Hello World";

  inputs.nixpkgs.url = "github:NixOS/nixpkgs/nixos-22.05";
  inputs.flake-utils.url = "github:numtide/flake-utils";

  outputs = { self, nixpkgs, flake-utils }:
    flake-utils.lib.eachDefaultSystem (system:
      let
        pkgs = nixpkgs.legacyPackages.${system};
        packageName = "npiperelay";
      in {
        packages.${packageName} = pkgs.stdenv.mkDerivation {
          name = "${packageName}";
          src = pkgs.fetchurl {
            url =
              "https://github.com/rupor-github/wsl-ssh-agent/releases/download/v1.6.3/wsl-ssh-agent.zip";
            sha256 = "sha256-A1ykYteoNZi6QACkYHSxa1hY55GfqgClIFZFX2GuLMU=";
          };
          phases = [ "installPhase" ];
          installPhase = ''
            mkdir -p $out/bin
            cp $src $out/bin/npiperelay.exe
            chmod +x $out/bin/npiperelay.exe
          '';
        };
        defaultPackage = self.packages.${system}.${packageName};
      });
}