building '/nix/store/lz2lc0rllby554y49nzzj79m33hxsw32-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:76ac471f531a3d2faa5c47b32a0eea271724ee18,tag:null}
Hello, world!