That’s horrifying.
Look, my setup works for me.
As a replacement for SA files one can have e.g. user accounts using SA impersonation, external identity providers, or run on GCP VM or GKE and use built-in identities.
(ref: https://cloud.google.com/iam/docs/migrate-from-service-accou...)
Curious about this! Currently trying to figure out a good 0.3mg melatonin dosing regimine for myself.