flake.lock

{
  "nodes": {
    "nixpkgs": {
      "locked": {
        "lastModified": 1757068644,
        "narHash": "sha256-NOrUtIhTkIIumj1E/Rsv1J37Yi3xGStISEo8tZm3KW4=",
        "owner": "NixOS",
        "repo": "nixpkgs",
        "rev": "8eb28adfa3dc4de28e792e3bf49fcf9007ca8ac9",
        "type": "github"
      },
      "original": {
        "owner": "NixOS",
        "ref": "nixos-unstable",
        "repo": "nixpkgs",
        "type": "github"
      }
    },
    "root": {
      "inputs": {
        "nixpkgs": "nixpkgs"
      }
    }
  },
  "root": "root",
  "version": 7
}

flake.nix

{
  description = "Static lshw cross-compile for armv7 with musl and full features";

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

  outputs = { self, nixpkgs }: let
    system = "x86_64-linux";
    pkgs = import nixpkgs { inherit system; };
    cross = import nixpkgs {
      localSystem = system;
      crossSystem = {
        config = "armv7l-unknown-linux-musleabihf";
        libc = "musl";
        abi = "eabihf";
        cpu = "armv7l";
        platform = pkgs.lib.systems.platforms.armv7l-hf-multiplatform;
      };
    };
  in {
    packages.${system}.lshw-armv7-static = cross.stdenv.mkDerivation {
      pname = "lshw";
      version = "B.02.20";
      hardeningDisable = [ "all" ];
      
      src = pkgs.fetchFromGitHub {
        owner = "lyonel";
        repo = "lshw";
        rev = "B.02.20";
        # run `nix-prefetch-url --unpack https://github.com/lyonel/lshw/archive/refs/tags/B.02.20.tar.gz`
        sha256 = "sha256-4etC7ymMgn1Q4f98DNASv8vn0AT55dYPdacZo6GRDw0=";
      };

      nativeBuildInputs = [
        pkgs.makeWrapper
        pkgs.pkg-config
        pkgs.git
      ];

      buildInputs = [
        cross.zlib
        cross.pciutils
        cross.libcap
      ];

      makeFlags = [ "static" ];

      CFLAGS = "-O2 -march=armv7-a -mfpu=vfpv3-d16 -mfloat-abi=hard";
      LDFLAGS = "-static";

      installPhase = ''
        mkdir -p $out/bin
        cp ./src/lshw-static $out/bin/lshw
      '';
    };
  };
}