Fun read, love finding those combination perf/cost wins! Have you considered using Firestore in Datastore mode[0]? It might make all of your reads free[1], tho

Fun read, love finding those combination perf/cost wins! Have you considered using Firestore in Datastore mode[0]? It might make all of your reads free[1], though migrating could be a project. [0] https://cloud.google.com/datastore/docs/firestore-or-datastore https://cloud.google.com/datastore/docs/firestore-or-datasto... [1] https://stackoverflow.com/a/53313540 https://stackoverflow.com/a/53313540