andreaslang.dev

Tutorial-style posts on data/software engineering and GenAI.

I'm Andreas, a Lead Data Engineer at Altruistiq. Lately I'm mostly building production AI on AWS Bedrock with pydantic-ai. Posts here are tutorials with runnable code; bring an AWS account and Terraform, leave with something that works.

Model portability: swapping Bedrock for the Mistral API

Terraform PR Agent June 15, 2026

Swap Bedrock for the Mistral API without touching the agent: an SSM model registry built at invoke time, plus EMF metrics so one CloudWatch dashboard covers every provider.
- bedrock
- pydantic-ai
- mistral
Audit trail via OTLP: every agent run as a trace

Terraform PR Agent June 9, 2026

Stream every pydantic-ai run as an OTel trace into S3 with Object Lock for the audit copy, with Logfire as the live visualizer.
- bedrock
- pydantic-ai
- audit
- opentelemetry
- s3
Bedrock and pydantic-ai with observability from day one

Terraform PR Agent June 2, 2026

Stand up Bedrock in Terraform, make your first pydantic-ai call, and front it with a CloudWatch dashboard and daily-threshold alarm.
- bedrock
- pydantic-ai
- terraform
- observability

Model portability: swapping Bedrock for the Mistral API

Audit trail via OTLP: every agent run as a trace

Bedrock and pydantic-ai with observability from day one