{ config, ... }:

{
  programs.zsh = {
    enable = true;

    sessionVariables = {
      V1 = "v1";
      V2 = "v2-${config.programs.zsh.sessionVariables.V1}";
    };
  };

  nmt.script = ''
    assertFileExists home-files/.zshenv
    assertFileRegex home-files/.zshenv 'export V1=v1'
    assertFileRegex home-files/.zshenv 'export V2=v2-v1'
  '';
}