Module to extract files to a destination

test.nix

{ config, lib, pkgs, ... }:

let
  extract = { source, stdenv }:
    stdenv.mkDerivation {
      # inherit destination;
      name = "extract";
      version = "1.0";
      src = source;
      # builder = ''
      # source $stdenv/setup

      # installPhase() {
      #     mkdir -p $out
      #     cp foo $out
      # }

      # genericBuild
      # '';
    };

  extractModule = {
    options = {
      source = lib.mkOption {
        description = "Source Archive";
        type = lib.types.path;
      };
      destination = lib.mkOption {
        description = "Destination Folder";
        type = lib.types.str;
      };
    };
  };

  cfg = config.test.extract;
in
{
  options.test = {
    extract = lib.mkOption {
      type = lib.types.attrsOf ( lib.types.submodule extractModule );
    };
  };
  
  config = {
    home.file = lib.mapAttrs' (name: config: lib.nameValuePair (config.destination + "/" + name) { 
      source = pkgs.callPackage extract { inherit (config) source; };
    }) cfg;
  };
}

usage.nix

home-manager.users.me = {
  imports = [
    ./test.nix
  ];
  
  test.extract.mytheme = {
    source = ../archive.xz;
    destination = "./local";
  };
};