The migration that works on staging and melts down production usually dies in the lock queue. Someone runs an ALTER
Continue readingZero-Downtime Schema Migrations: Expand-Contract on PostgreSQL, Step by Step
Every team starts logging with good intentions and ends up with a bill. Somewhere between the first incident and the
Every team that adopts SLOs eventually hits the same wall: the service is “up 99.95% of the time,” nobody knows
Continue readingMulti-Window, Multi-Burn-Rate Alerting: SLO Pages That Don’t Cry Wolf
Sooner or later every API team hits the wall: a client depends on behavior you need to change. The field
If you shipped a CLI tool or a single-page app in the last few years, you have probably implemented “OAuth”
Every codebase has a logging moment of reckoning. It arrives when someone has to debug a production incident at 2
Continue readingStructured Logging in Go: A Practical slog Field Guide
Every codebase that touches a database, an S3 bucket, or a third-party API has secrets, and every team eventually learns
Continue readingSecrets Management Beyond .env Files: Vault, External Secrets, and CI Hygiene
Every concurrent program rests on a promise most developers have never read: the language’s memory model. It is the contract
Continue readingGo vs Rust vs Free-Threaded Python: Memory Models Compared
Every schema migration is easy the first time, when the table is empty and the only user is your test
Continue readingZero-Downtime PostgreSQL Migrations: Locks, Rewrites, and Expand-and-Contract
Most Go services run for months without anyone touching a single GC knob, and that is exactly how the runtime
Continue readingThe Go Garbage Collector in Production: GOGC, GOMEMLIMIT, and Allocation Discipline