Feature flag service architecture diagram with Go backend, Redis cache, and React frontend

Build a Production-Ready Feature Flag Service for Your Portfolio

Build a local-first feature flag service in Go with Redis backing, React UI, and observability — a concrete portfolio project that demonstrates real systems engineering skills.

September 11, 2026 · 4 min · 666 words · martinuke0
Abstract network of autonomous agents connected to infrastructure

Agent Infrastructure Is Creating New Security Challenges

AI agents aren’t chatbots. They execute code, hold credentials, and call APIs on their own. Here’s why that breaks traditional security models — and what teams are doing about it.

September 5, 2026 · 8 min · 1650 words · martinuke0
Diagram of a split agent architecture with a planner process and an executor process connected by a control channel.

Split Agent Architecture in Harness: Separating Reasoning from Execution

Harness separates its AI coding agent into a lightweight planner and a sandboxed executor. Here’s why that split matters for latency, security, and observability.

September 5, 2026 · 8 min · 1519 words · martinuke0
Stylized terminal window showing git commands and a pull request workflow.

GitHub Zero to Hero: The Engineer’s Guide to Shipping Code Without Drama

A working engineer’s playbook for going from first commit to GitHub Actions, code review, security, and Codespaces — without the usual tutorial fluff.

September 4, 2026 · 11 min · 2322 words · martinuke0
Abstract vault door with glowing key shards reassembling.

Inside HashiCorp Vault: Unsealing, Audit Logs, and Transit Encryption

A practitioner’s tour of three Vault primitives engineers touch daily — the Shamir-based unseal flow, the tamper-evident audit log device, and the stateless transit encryption engine — with concrete config and production patterns.

September 4, 2026 · 11 min · 2134 words · martinuke0
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