building '/nix/store/lzqy45sb1di02hj2hb86zcv5mg1vlby3-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:99294142c9215baa7871d45b4993502f0858a65a,tag:null}
Hello, world!