While I'm not arguing against the use case for Alexia, for something like cat litter, why not buy 1 bag every X weeks, surely your cat excrement production rate is fairly constant.
> ...surely your cat excrement production rate is fairly constant.
I see you aren't a cat owner. One of our cats is pretty consistent but the other varies wildly both in her eating and pooping habits. One day the litter box is barely in need of scooping, the next you have to scoop twice throughout the day. This has caused us to have to buy a bag of litter in the middle of the week on more than one occasion.
There are times I would remember to get more when I'm running low, there are times I'd forget and I'd have to run out at 1am to the 24/7 supermarket because I feel so bad for forgetting and I know how much the cat hates when her litter is low.
In the past I would have multiple boxes stacked up and would try to reorder when I was down to one, but even then I'd forget, and storing multiple boxes of cat litter is annoying in our small condo.
This is a great solution to me. And before this I had a DIY button made with a raspberry pi that would do it for me that I put near the cat litter. IMO this is a better UX.
But I've found it's just not that consistent for it to work in some of these cases.
I sometimes order 2 boxes of litter a month, and sometimes don't order any.
Now if you are talking about something which will measure how much I have left via a scale or some other method and reorder when I'm low, I'd love that! I'll need to see if I can grab another ESP8266 and some load sensors and set that up!
I see you aren't a cat owner. One of our cats is pretty consistent but the other varies wildly both in her eating and pooping habits. One day the litter box is barely in need of scooping, the next you have to scoop twice throughout the day. This has caused us to have to buy a bag of litter in the middle of the week on more than one occasion.