With a total amount of 31 gems published within a year and this person having a lot more published libraries outside the ML space, how much time is available pe

With a total amount of 31 gems published within a year and this person having a lot more published libraries outside the ML space, how much time is available per gem for things like continued development, regular updates to new ruby versions and/or bug fixing? I can't help but think that having so many gems becomes unsustainable rather soon.