Zero-Downtime PostgreSQL Migration: The Checklist From a 2M-Record Move
Logical replication or dual writes, chunked backfill, checksum verification, a reversible cutover and a rollback you have actually tested. The full checklist.
#Architecture
PCI-DSS Level 1 on a Go Backend: The Architecture Decisions That Survive a QSA
Scope reduction, tokenization and segmentation: the architecture choices that decide a PCI-DSS Level 1 audit, plus the Go-specific ways card data leaks out.
GraphQL Federation on Go: When a Monolith Schema Should Split
Federation is a team-scaling tool, not a performance upgrade. The signals that justify splitting a Go GraphQL schema, what it costs, and the migration order.
Which OWASP ASVS Level Does Your App Actually Need?
OWASP ASVS has 3 security levels. Most teams pick wrong: either too little or way too much. A practical guide to choosing the right level.