One of the biggest advantages of Android is that it runs on Linux and Termux [1] is a very capable terminal emulator. Until pine phone (which I own for playing around on) type devices reach daily driver maturity (to use with job related corporate apps etc.) Termux is my only realistic option to run Linux terminal apps on the phone. This is where being able to use Emacs as a TUI application on Termux is great....
Getting into home espresso has been fun, it’s a rabbit hole like most fun things. And with rabbit holes it’s best to decide how far you’re willing to fall in before really starting down that hole. For me, it was an used Rancilio Silvia modded with a temperature PID controller and a refurbished Baratza Vario. At this level it’s definitely possible to get good espresso and latte art if one tries, gets lucky, and practices… it’s a good balance....