https://esbenthomsen.com/writing A three-part field report on separating compute, table storage, and business logic in Microsoft Fabric, told across nine chapters. en https://esbenthomsen.com/writing/the-placement-decision https://esbenthomsen.com/writing/the-placement-decision Fri, 04 Sep 2026 09:00:00 GMT Boundaries of the Lakehouse · Part 1 · Ch 1/3. Why an application-like Python workload does not have to run inside Fabric. https://esbenthomsen.com/writing/permitted-drift https://esbenthomsen.com/writing/permitted-drift Fri, 04 Sep 2026 09:00:00 GMT Boundaries of the Lakehouse · Part 1 · Ch 2/3. How the execution model moved from a repository checkout to a release-bound image. https://esbenthomsen.com/writing/the-price-of-cheap https://esbenthomsen.com/writing/the-price-of-cheap Fri, 04 Sep 2026 09:00:00 GMT Boundaries of the Lakehouse · Part 1 · Ch 3/3. The economics behind the placement decision, and where Batch stops making sense. https://esbenthomsen.com/writing/the-handshake-breaks https://esbenthomsen.com/writing/the-handshake-breaks Fri, 04 Sep 2026 09:00:00 GMT Boundaries of the Lakehouse · Part 2 · Ch 1/3. What delta-rs makes possible, and the incident that shows where interoperability actually breaks. https://esbenthomsen.com/writing/the-ghost-retry https://esbenthomsen.com/writing/the-ghost-retry Fri, 04 Sep 2026 09:00:00 GMT Boundaries of the Lakehouse · Part 2 · Ch 2/3. Bronze as an append contract, and why a committed table is not the same as exactly-once ingestion. https://esbenthomsen.com/writing/the-feature-envelope https://esbenthomsen.com/writing/the-feature-envelope Fri, 04 Sep 2026 09:00:00 GMT Boundaries of the Lakehouse · Part 2 · Ch 3/3. Silver, schema discipline, and treating Delta compatibility as a contract rather than a checkbox. https://esbenthomsen.com/writing/handover-at-silver https://esbenthomsen.com/writing/handover-at-silver Fri, 04 Sep 2026 09:00:00 GMT Boundaries of the Lakehouse · Part 3 · Ch 1/3. Why business logic moves back into Fabric, expressed as Materialized Lake Views. https://esbenthomsen.com/writing/skipped-incremental-full https://esbenthomsen.com/writing/skipped-incremental-full Fri, 04 Sep 2026 09:00:00 GMT Boundaries of the Lakehouse · Part 3 · Ch 2/3. Dependency-aware refresh, and the sharp edges of operating Materialized Lake Views. https://esbenthomsen.com/writing/three-owners https://esbenthomsen.com/writing/three-owners Fri, 04 Sep 2026 09:00:00 GMT Boundaries of the Lakehouse · Part 3 · Ch 3/3. Data quality, ownership, and the architecture as a whole.