{
  config = {
    programs.discocss = {
      enable = true;
      package = null;

      discordAlias = false;

      css = ''
        /* Custom Discord theme */
        .theme-dark {
          --background-primary: #2f3136;
          --background-secondary: #36393f;
        }

        .chat-3bRxxu {
          background: var(--background-primary);
        }

        .content-yTz4x3:before {
          content: "Custom CSS Loaded";
          color: #43b581;
        }
      '';
    };

    nmt.script = ''
      assertFileExists home-files/.config/discocss/custom.css
      assertFileContent \
        home-files/.config/discocss/custom.css \
        ${./with-custom-css-expected.css}
    '';
  };
}