Or buy a Bialetti moka and that's it.
They're small, hot as hell, you don't prepare much coffee out of it, the coffee is burning hot, it's easy to fail your coffee, and the taste is most of the time very (too?) bitter.
But at least... digestion will indeed be facilitated ^^
Source: my family in Italy became Bialetti cultists, I have to bear it to avoid boring comments on "real" coffee.
So I bought a “12 cup” Bialetti, which makes about a pint each time, which is enough to keep me going for a day or two.
And yes it took me a while to get the hang of getting it to siphon all the water through the coffee properly without over-cooking.