How can I customize ZSH theme w/ NixOS?

[zvictor]

This is how I made it work with Spaceship:

{ lib, config, pkgs, ... }: {
  home.packages = with pkgs; [
    zsh
    spaceship-prompt
  ];

  programs.zsh = {
    enable = true;
    initExtra = ''
      source ${pkgs.spaceship-prompt}/share/zsh/themes/spaceship.zsh-theme;
    '';
   }