https://github.com/akkartik/mu/blob/master/display.mu

     1 # example program: managing the display
     2
     3 def main [
     4   open-console
     5   clear-display
     6   print-character-to-display 97, 1/red, 2/green
     7   1:num/raw, 2:num/raw <- cursor-position-on-display
     8   wait-for-some-interaction
     9   clear-line-on-display
    10   move-cursor-on-display 0, 4
    11   print-character-to-display 98
    12   wait-for-some-interaction
    13   move-cursor-on-display 0, 0
    14   clear-line-on-display
    15   wait-for-some-interaction
    16   move-cursor-down-on-display
    17   wait-for-some-interaction
    18   move-cursor-right-on-display
    19   wait-for-some-interaction
    20   move-cursor-left-on-display
    21   wait-for-some-interaction
    22   move-cursor-up-on-display
    23   wait-for-some-interaction
    24   close-console
    25 ]