let 
  lib = (import <nixpkgs> {}).lib;

in
  {

    clementine.spotify = false;
    whitelistedLicenses = with lib.licenses; [ wtfpl ];
    vim =
      { gui = "gtk3";
      python = true;
      multibyteSupport = true;
    };

    packageOverrides = pkgs: with pkgs;
    rec {
      myVim = (vim_configurable.override {python = python3;}).customize {
            # executable/ package name
            name = "vim";
            vimrcConfig.packages.myVimPackage = with pkgs.vimPlugins; {
          # loaded on start
          start = [
            ale
            ctrlp
            #deoplete-jedi
            fugitive
            jedi-vim
            nerdtree
            nerdtree-git-plugin
            supertab
            vim-pandoc
            vim-pandoc-syntax
            vim-nix
            vim-jinja
          ];
        };
        vimrcConfig.customRC = 
          ''if filereadable($HOME . "/.vimrc")
            source ~/.vimrc
          endif
          '';
      };
      # build with debug symbols and in debug mode (less optimized)
      opencvDebug = enableDebugging ((opencv3.override {enablePython=true; enableGtk3=true; enableDocs=true; pythonPackages=pkgs.python3Packages; }).overrideAttrs (oldAttrs: rec {cmakeBuildType = "Debug";}));
    };

  }