this one explains itself

1: no suggesting obscure and/or crappy timers or joke timers

2: no suggesting anything straight from the app store (i swear to god i checked all of the 5 timers on there and none of them actually can be used to full potential BECAUSE THEY RATHER FUCKING SUCK OR THEY DONT HAVE ANY TUTORIALS ON THEM BECAUSE THEY ARE NAMED CLEVERLY SO THAT WHEN I SEARCH FOR TUTORIALS NO MATTER HOW I PHRASE IT I GET 0 TUTORIALS ON WHAT IM LOOKING FOR

3: the speedrun timer you suggest must have a 64-bit mac version and have a tutorial linked to it