This idea came to me in a meeting. It's a timer.
https://lucaasrojas.github.io/best-timer/#/
Because it was made with love and effort. Also it has a great design :D
Well this is simple, you have two ways
You can change the values by changing the URL.
timer/1min2sec
or
timer/1minute2seconds
You will see a help text on the corner that will lead you through the commands
Of course, but you only will be able to change the values using the URL method and touching the screen to start or pause the timer.