IDEAS, DECISIONS & LESSONS

Journal

Notes on AI, architecture and building useful products.

878 articles

17 Mar 2026 · 6 min read

bugs

English Upgrade #8: Dev vs QC — Bug Discussions Without Ego

How to discuss bugs, defend your code professionally, accept valid feedback, and collaborate with QA — in clean, professional English.

17 Mar 2026 · 16 min read

ai-testing

Playwright CLI: The Complete Guide for QA Testers in 2026

A practical guide to Microsoft's Playwright CLI for QA testers transitioning from manual to automated testing. Learn why CLI beats MCP, setup from scratch, core commands, and real-world workflows.

16 Mar 2026 · 10 min read

ai-agent

NanoClaw Complete Guide 2026: Install, Setup & Real Workflows for Every Role

Step-by-step guide to install NanoClaw on macOS, WSL Windows, and Proxmox. Includes real workflows for developers, QA engineers, marketers, and business users. Built on Claude AI.

16 Mar 2026 · 7 min read

async

English Upgrade #20: Remote Work and Async Communication

The complete guide to asynchronous English communication — Slack etiquette, async standups, RFC writing, and managing distributed teams across time zones.

16 Mar 2026 · 16 min read

The AI Trust Boundary: What to Never Delegate and What to Always Verify (Part 7 of 13)

Part 7 of 13 — AI doesn't understand threat models. How to define your trust boundary, handle security-critical code, and build guardrails that protect your users.

16 Mar 2026 · 7 min read

English Upgrade #7: Dev vs BA — Requirement Debates

How to push back on vague requirements, negotiate scope with BAs, and have productive requirement discussions — all in professional English.

16 Mar 2026 · 10 min read

cicd

Multi-Agent Deep Dive Part 5: CI/CD Pipeline for Agents — LangSmith Eval, Prompt Versioning & Canary Deploys

Production CI/CD patterns for multi-agent AI systems. Covers LangSmith evaluation pipelines, prompt versioning with S3, canary deployments, regression testing, cost monitoring gates, and automated rollback strategies.

16 Mar 2026 · 19 min read

pipecat

Pipecat Voice Agent in Production: Complete Guide to Issues, Optimization & Scalable Architecture

Deep-dive into 26+ real production issues with Pipecat voice agents — latency, audio quality, memory leaks, VAD problems, and pipeline freezes — plus battle-tested optimization strategies for building scalable voice AI systems.

16 Mar 2026 · 12 min read

ai-agent

Multi-Agent Deep Dive Part 1: Designing the Orchestrator Agent — Brain Architecture, Routing Logic & Prompt Engineering

Implementation-ready guide to building the Brain agent in a multi-agent system. Covers LangGraph supervisor patterns, Command API routing, context injection, prompt engineering, state schema design, and cost-optimized model selection.