Yeah Kiwix is great for this, I just put together what this company is essentially selling for free by myself a few months ago. In fact I would be surprised if this company wasn’t using Kiwix as most of the resources they listed are on it already.

My internal clock is similarly good, but more of an asshole. If I fall back asleep after an alarm accidentally and have somewhere I need to be, my body will wake me up with the absolute bare minimum amount of time I need to get ready if I rush like an absolute mad man.