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Case Studies

Technical delivery notes with the constraints, decisions, evidence, limits, and takeaways left intact.

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Each case study argues for one or more principles. Jump to the principle to see every post and study that backs it.

Explicit Control Loops Evidence First, Measure Before You Optimize Warnings Over Errors, Graceful Degradation by Default One Config, Many Surfaces Contract-Driven Integration GitOps as the Boring Substrate

Updated Aug 30, 20265 min read

HealthcareIn ProgressFeatured

fi-fhir: Profile-Driven Healthcare Integration

How fi-fhir separates feed-specific variance from parsing, semantic events, durable delivery, and workflow policy—and where the pre-1.0 platform still has work to do.

Go
PostgreSQL
YAML
CEL
+5 more

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Patient Matching When the API Contract Is Ambiguous

Updated Aug 30, 20265 min read

Healthcare

Patient Matching When the API Contract Is Ambiguous

A de-identified field pattern for containing patient-match risk when filter and mode parameters interact in undocumented ways.

REST API
Go
PostgreSQL
Prometheus

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Working Through a Similar Constraint?

If your team is facing a similar integration or platform reliability problem, I'd be glad to compare evidence and tradeoffs.

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