While realizing this will not help the OP, I can recommend this coffee brewer for anyone who wants a machine that will do a very good job of brewing one cup or a full pot.
I bought it for my mother after some research and we both love it (I have an old espresso setup and am thinking of downsizing and just buying myself the OXO), and it's easy enough to use for an 80+ year old who has a bit of arthritis in her hands.
Not inexpensive, but I got it for a significant amount below MSRP during the Christmas season.
https://www.oxo.com/8-cup-coffee-maker.html