It’s nothing fancy really, just a simple quick frontend for integrated Windows shutdown parameters. I made it for myself when I watch TV or Twitch on my laptop in bed as I go to sleep and I don’t want stream playing till morning draining entire battery, I usually set it to 1 or 2 hours and then it entirely shuts down the laptop, allowing me to watch TV like this for few days on a single battery charge instead of draining it all in one night. And I thought it might come in handy for you guys as well so I just released it to public.
It’s literally a simple sleep timer for what I’m using it which is why it only goes up to 4 hours and doesn’t have very granular control, because there is no need for it. If you need more granular control or more advanced controls, I suggest you look for something else. This one was made as simple as possible on purpose.