let blocks = ["▏" "▎" "▍" "▌" "▋" "▊" "▉" "█"]
let pb_size = 25
ansi cursor_off
1..<$pb_size | each { |cur_size|
    0..7 | each { |tick|
        let idx = ($tick mod 8)
        let cur_block = ($blocks | get $idx)
        print -n $"(ansi -e '1000D')($cur_block | fill -c $blocks.7 -w $cur_size -a r)"
        sleep 20ms
    }
    print -n $"(ansi -e '1000D')"
}
print $"($blocks.7 | fill -c $blocks.7 -w $pb_size -a r)"
'Done'
ansi cursor_on