05 / WRITING
Notes from production.
Essays on running production infrastructure end-to-end — cost, reliability, migrations and putting AI agents on rails.
Running a multi-tenant SaaS for $200 a month
How cost-conscious architecture choices keep the entire OpsPuls production footprint — Fargate, RDS, SQS, SES — under $200/month.
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Agentic CI/CD: putting Claude Code on rails
A scheduled agent picks Jira tickets and ships PRs — gated by ArchUnit tenant-isolation, an LLM eval suite and a PII-redaction check before automated merge.
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Migrating 50M records with zero data loss
Versioning and feature flags made a 50M+ record EU production migration boring — exactly how it should be.
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