{
  programs.bash.enable = true;
  programs.fish.enable = true;
  programs.nushell.enable = true;
  programs.zsh.enable = true;
  services.yubikey-agent.enable = true;

  nmt.script = ''
    assertFileContains \
      home-files/.profile \
      'export SSH_AUTH_SOCK="/tmp/yubikey-agent.sock"'
    assertFileContains \
      home-files/.config/fish/config.fish \
      'set -x SSH_AUTH_SOCK "/tmp/yubikey-agent.sock"'
    assertFileContains \
      home-files/.config/nushell/config.nu \
      '$env.SSH_AUTH_SOCK = /tmp/yubikey-agent.sock'
    assertFileContains \
      home-files/.zshenv \
      'export SSH_AUTH_SOCK="/tmp/yubikey-agent.sock"'
    assertFileContains \
      home-files/.zprofile \
      'export SSH_AUTH_SOCK="/tmp/yubikey-agent.sock"'
  '';
}