The other part of this pattern you mention (replicating data) seems solved in many cases by the data warehouse patterns of the last few years. Stuff it all in S

The other part of this pattern you mention (replicating data) seems solved in many cases by the data warehouse patterns of the last few years. Stuff it all in Snowflake or BigQuery then readers can query as they see fit. Query engines like Trino can paper over data storage heterogeneity / breakdowns in centralization. I'm not a fan of the "lakehouse" terminology, but it is the thing. There are downsides to coupling more loosely with data consumers, but it keeps service owners moving without wasting time vending data.