Tag
#architecture
23 articles: Note, System, Journal.
The Serverless Migration Decision: Cold-Start and Vendor Lock-in
Before you move to FaaS: the real cost of cold-start latency, vendor lock-in risk, and the workloads where serverless actually pays off
The BFF Pattern: A Separate API Layer for Mobile and Web
Separate API layers for mobile and web: the hidden cost of bending one API to fit every client, and when a BFF is actually warranted
Synchronous or Asynchronous? The Line Between HTTP and the Queue
Should a job run inside the HTTP request or go to a queue? The decision line, drawn through response time, fault tolerance, and consistency
Transactional Outbox: Dual-Write, At-Least-Once, and Idempotent Consumption
Writing to the database but failing to put the event on the queue: closing dual-write with an outbox, suppressing the at-least-once repeats it creates, and encrypting the field.
Event-Driven Architecture: When It Saves You, When It Adds Complexity
The price of loose coupling through events: balancing the flexibility it buys against the risk of making your system's flow impossible to trace
Zero Static Authority in Multi-Cluster GitOps
GitOps across many Kubernetes clusters with no long-lived kubeconfig or token. SPIFFE IDs, SPIRE-issued short-lived SVIDs, trust-domain federation — the order to build it in, and what each step costs.
Replaying a Dead-Letter Queue Without Making It Worse
The DLQ filled up during an outage and you want it back. Naive replay re-poisons the queue or double-fires side effects. The safe shape: reset, dry-run, sandbox-first, select.
Distributed Tracing Across a Polyglot Queue
A message crosses PHP, Go and Python over a frozen envelope. Turning its journey into one OpenTelemetry trace with no new field and no core dependency — and the honest limit of that.
Validating the Schema at the Edge of the Queue
A message's data is an untyped contract the queue won't check. Validate it at the edge: producer-side before publish, consumer-side as a safety net, against a per-URN schema
Your Architecture Decisions Rot Because Nothing Runs Them
An architecture decision written in a wiki is a wish. The boundaries you can't enforce are the ones that quietly erode — until the diagram stops matching the code. Make the rule executable
Idempotency: When the Same Message Arrives Twice
At-least-once delivery means a handler will see the same message twice. The idempotency key, where it comes from, and the dedupe that survives a crash
Schema Evolution: Changing a Contract Without Breaking It
A message's data shape is a contract across services you can't change atomically. The rule: additive is safe, a breaking change needs a new identity — and consumers upgrade first
Can You Ship Vibe-Coded Software to Production?
Vibe coding lowers the cost of a first version, not the cost of being wrong. That bill arrives in production, not at build time — and it depends on whose hands shipped it.
Layered Architecture or Clean Architecture?
Why the classic layered structure is enough for most projects while we drown in abstraction layers, and when Clean Architecture actually pays off.
The Production Cost of "Just-in-Case" Code
Applying YAGNI in practice: the price of adding flexibility you don't need today, repaid daily in maintenance, readability, and bug surface
Race Conditions and Gaps in Sequential Numbering: JIT Reservation
Generating legally sequential, gap-free numbers with parallel workers: the JIT reservation pattern that solves race conditions and gaps together
When I Move to Microservices
The measured signals that justify moving from a monolith to a distributed architecture — and the common false reasons that say it's still too early
Why I Start Projects With a Modular Monolith
The case for drawing clean module boundaries inside a single deployable app before jumping to microservices — and when I stop doing it.
Scale Breaking Points in Data-Intensive Systems
As data load grows, where does boring architecture break? Working set, read replicas, partitioning, write load and a separate data layer — the breaking points in order, and what each one costs
Why I Prefer Boring Architecture
The pragmatic case for choosing proven tools over chasing new technology. This is not cowardice, it is a budget decision.
Namespace Isolation for a Shared Redis
The pattern I use to avoid key collisions and TTL accidents when a single Redis instance is shared across several projects
Multiple Projects on a Single VPS
One VPS, several independent apps. Deliberate minimalism over Kubernetes: user isolation, separate PHP-FPM pools, shared PostgreSQL/Redis, a plain deploy.
Laravel Production Stack
A production-grade Laravel setup with Nginx + PHP-FPM + Redis + PostgreSQL + Supervisor + Horizon. Each piece job and what you lose if you drop it