@Rizky Eko Putra you could either forward port 3000 via SSH (

ssh -L localhost:3000:localhost:3000 <GCP IP>

I think, I forget the exact magic commands), or pass

-h 0.0.0.0

to your dagit command (which make it accessible to everyone, if your GCP VM is open)

ok, thanks @Ben Sully, will try this