Intro Google Cloud Datastore is a serverless, fully managed NoSQL document database that scales horizontally without configuration. For teams building on Google Cloud, particularly those running workloads on App Engine or Cloud Run, it's a natural fit: no clusters to manage, no connection pools to tune, and strong consistency guarantees backed by Google's infrastructure. If you've been around Google Cloud long enough, you probably remember the old App Engine NDB library. For its time, NDB was genuinely delightful: you declared your models with expressive Python classes, queried them with clean syntax, and got automatic in-memory caching almost for free. The developer experience was the closest thing the Google Cloud ecosystem had to Django's ORM or SQLAlchemy for NoSQL. Then came the great migration. App Engine's second generation dropped the NDB runtime, and the recommended path forward became google-cloud-ndb (a Python3 port) or google-cloud-datastore (the raw modern SDK). Both are maintained. Both work.…