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Not quite, but first MVP in 3 months and $80m gross revenue in the first year. Selling t-shirts. We did it with 3 engineers, no devops or qa teams and definitely no pagers. We had zero downtime and the very rare bugs were fixed on the next push to master (CI/CD) and real testing.

I'm not saying the datastore is perfect, but using the datastore has well known and predictable limitations that need to be engineered for. It is definitely not something you can RTFM later on. Just like any database to be honest. It is not a relational database. It doesn't do aggregations. It is for storing data (using Objectify [0]) and memcache is for caching that data.

[0] https://github.com/objectify/objectify

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