```cpp struct { char domain[32]; char clientId[16]; char user[16]; char password[16]; } mqtt; ``` (f637c2f39e/PersistentStorage.h) This went unnoticed, because on NixOS, mosquitto does not validate passwords by default.
f637c2f39e/PersistentStorage.h
This now requires authenticating with a valid password, which it apparently didn’t do before?