I dont see a reason for this. I suppose it was used for testing.
@ -695,7 +695,6 @@ as of 0.4.0 all options are specified in config file, see in '/home/username/.co
if (inAtty) {
system("setfont cava.psf >/dev/null 2>&1");
system("echo yep > /tmp/testing123");
system("setterm -blank 0");
}