>_ BLOG
Our notes.
From the people building Danubio's client work, on engineering, the industry, and what our experience teaches us.
EngineeringJune 2, 2026
How we rebuilt a backend without migrating the data
The riskiest rebuilds change code and data at once. We kept one shared data layer, got read parity for free, and deferred schema changes until after cutover.
Working on something like this?
Many of these posts started as client projects.
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