Notes on the Platform Rebuild

Placeholder post added alongside the projects section so the series cross-link between blog posts and portfolio projects has something real to point at. See the “Example Data Platform Migration” project for the full write-up this post accompanies.

Notes from partway through the migration: the incremental cutover approach (running old and new pipelines side by side and diffing output) caught several edge cases in currency rounding that would have otherwise shipped silently.