alt Hacker NewsThe Pi makes no sense anymore at these prices. But I love that I got to experience them when they were affordable. I owned multiple 4bs at one point, and even have a 2b and 3b lying around. I have a clusterhat that I tried to setup again, but realized that the Pi0Ws have only 512mb RAM each and that's useless now.
with headless debian, i think you have around 400MB ram left for yourself, enough to run light stuff like pihole or Wireguard