

KBY Technologies — Production Engineering Intelligence
Edge-Side Includes: Composing Micro-Frontends
How Varnish and Fastly assemble micro-frontend fragments at the CDN edge using edge-side includes, with cache-key isolation and origin failure fallbacks.
Systems Architecture // latest analysis
Design resilient systems for production
Senior engineering analysis across architecture, cloud platforms, DevOps, security and operational resilience.
Systems Operational
All CI/CD pipelines and production clusters are running nominally.
[System] Listening for incoming technical documentation...
Fresh operational intelligence
The newest Config Trap, incident runbook, Daily Triage drill and Lexicon reference—kept focused on what engineers can use now.
CQRS (Command Query Responsibility Segregation)
A pattern where you use one model/pipeline to accept writes and a separate, denormalized model/pipeline to serve reads, instead of one schema doing both jobs.
etcd 2379 TLS Without client-cert-auth Is Theatre
Set --client-cert-auth=true with a trusted CA file and validate enforcement with an unauthenticated etcdctl read attempt.
DNS CNAME records pointing to deprovisioned Azure/AWS resources creating subdomain takeover vulnerabilities
A marketing microsite or staging subdomain (e.g. promo.company.com) starts serving unrelated content, a parking page, or an obvious phishing clone. Security scanners flag valid TLS certificates issued for the…
etcd Leader Flapping After gp3 Migration Stalls Kube API
You’re on call. Read the signals, choose your first intervention, and reveal the reasoning behind every option.
Deterministic engineering tools with explicit contracts.
Explore our deterministic engineering utilities for strict network planning, SLO mathematics, and configuration validation.
SLO and Error-Budget Suite
Calculate exact error budgets, observed SLI and versioned multiwindow burn-rate alert thresholds without floating-point loss.
IPv4 and IPv6 CIDR Planner
Normalize IPv4/IPv6 networks, calculate exact ranges and audit batch allocations for containment, overlap, alignment and unused capacity.
Configuration Validator and Semantic Diff Studio
Validate strict JSON/YAML, apply pinned schemas, generate a verified RFC 6902 patch and fingerprint RFC 8785 canonical configuration.
Meet the editors
Three tracks. Practical engineering judgement.
Explore senior architecture, operations automation and production-focused early-career guidance through the editors responsible for each track.

Alistair Vance
Covers multi-region Kubernetes, service mesh and high-availability database topologies for production systems.

Elliot Ward
Elliot translates enterprise identity, endpoint administration, and Microsoft 365 into production-focused guidance for junior engineers.

Emi Nakamura
Specialising in Zero-Touch & Automation, Emi writes pragmatic playbooks to engineer out repetitive helpdesk tasks.



