Nix flake for socket_vmnet

flake.nix

{
  description = "socket_vmnet - user-mode networking for macOS VMs";

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

  outputs = { self, nixpkgs }: let
    version = "1.2.1";

    # Helper function to create the package for a specific architecture
    mkSocket = system: let
      pkgs = nixpkgs.legacyPackages.${system};
      arch = if system == "aarch64-darwin" then "arm64" else "x86_64";
      sha256 = if system == "aarch64-darwin"
        then "sha256-fJfKz1NTvawSkuHTcciKArWVb1zTGHMvpR7HiRg2QQ8="
        else "15q1kjykibhqwflw1ivxfgqwys5d1z5n25yfgl3g66z8ggy3k9v4";
    in pkgs.stdenv.mkDerivation {
      pname = "socket_vmnet";
      inherit version;

      src = pkgs.fetchurl {
        url = "https://github.com/lima-vm/socket_vmnet/releases/download/v${version}/socket_vmnet-${version}-${arch}.tar.gz";
        inherit sha256;
      };

      buildInputs = [
        pkgs.darwin.apple_sdk.frameworks.Security
        pkgs.darwin.apple_sdk.frameworks.SystemConfiguration
      ];

      dontBuild = true;

      installPhase = ''
        runHook preInstall

        mkdir -p $out/opt/socket_vmnet
        cp -r ./socket_vmnet/. $out/opt/socket_vmnet/

        mkdir -p $out/bin
        chmod +x $out/opt/socket_vmnet/bin/*
        ln -s $out/opt/socket_vmnet/bin/* $out/bin/

        for bin in $out/opt/socket_vmnet/bin/*; do
          ${pkgs.darwin.cctools}/bin/install_name_tool -add_rpath @executable_path/../Frameworks $bin
        done

        runHook postInstall
      '';

      meta = with pkgs.lib; {
        description = "User-mode networking for macOS VMs";
        homepage = "https://github.com/lima-vm/socket_vmnet";
        license = licenses.bsd3;
        platforms = platforms.darwin;
        maintainers = [ ];
      };
    };
  in {
    packages = {
      aarch64-darwin.default = mkSocket "aarch64-darwin";
      x86_64-darwin.default = mkSocket "x86_64-darwin";
    };
  };
}