const char *spinner[] = {
"⢀⠀","⡀⠀","⠄⠀","⢂⠀","⡂⠀","⠅⠀","⢃⠀","⡃⠀","⠍⠀","⢋⠀","⡋⠀","⠍⠁","⢋⠁","⡋⠁","⠍⠉",
"⠋⠉","⠋⠉","⠉⠙","⠉⠙","⠉⠩","⠈⢙","⠈⡙","⢈⠩","⡀⢙","⠄⡙","⢂⠩","⡂⢘","⠅⡘","⢃⠨","⡃⢐",
"⠍⡐","⢋⠠","⡋⢀","⠍⡁","⢋⠁","⡋⠁","⠍⠉","⠋⠉","⠋⠉","⠉⠙","⠉⠙","⠉⠩","⠈⢙","⠈⡙","⠈⠩",
"⠀⢙","⠀⡙","⠀⠩","⠀⢘","⠀⡘","⠀⠨","⠀⢐","⠀⡐","⠀⠠","⠀⢀","⠀⡀"
};
const unsigned spinner_length = sizeof(spinner) / sizeof(spinner[0]);