static S chromeCmd() {
  ret chromeCmd(false);
}

static S chromeCmd(bool needSpeech) {
  ret platformQuote(
    isWindows() ? f2s(assertNotNull("chrome.exe not found", windowsFindChromeExe())) :
    isMac() ? "/Applications/Google Chrome.app/Contents/MacOS/Google Chrome" :
    needSpeech
      ? firstCmdOnPATH_mandatory("google-chrome")
      : firstCmdOnPATH_mandatory("google-chrome", "chromium-browser"));
}