building '/nix/store/72hprzvj2l4z4vy7jx36j08w4gnqypxf-effect-env.drv'...
Running phase: initPhase
@nix { "action": "setPhase", "phase": "initPhase" }
Running phase: userSetupPhase
@nix { "action": "setPhase", "phase": "userSetupPhase" }
Running phase: effectPhase
@nix { "action": "setPhase", "phase": "effectPhase" }
{branch:main,rev:3dac4ca086a525086dd63b425bf23a1f732bd73e,tag:null}
Hello, world!