A Pokémon tamagotchi for the BTT Knomi V2. Install it from your browser, with nothing to set up.
Pick the USB serial port when asked, usually named CH340 or wchusbserial. It takes a few minutes, so keep the Knomi plugged in.
Updating? Leave Erase device unticked to keep your Pokémon. Ticking it deletes the game and the saved Wi-Fi.
Choose your starter and tap the egg to hatch it. For the clock, swipe down, then swipe left and tap Change Wi-Fi.
This replaces the printer-status firmware on the Knomi. The README explains how to go back, and how to fix a port that doesn't show up.
Unofficial, non-commercial fan project, not affiliated with Nintendo, Game Freak or The Pokémon Company.