I am using a gCloud e2-micro instance (Micro machine type with 0.25 vCPU and 1 GB of memory, backed by a shared physical core)
edit: If someone is curious why in the world I would do this, I get more traffic from crawlers than users, and we’re trying to provide more points of contact for families and survivors of pediatric stroke. Nobody notices it being a little slow on first load or saving, and so the value delivered on free-tier Google Cloud is helpful.