Engineering notes
Articles for people who
ship the stack
Rewrites on React, Node.js, TypeScript and AI. A translated body is shown when it exists. If it does not, you see the English text and a note that says so.
Tagged: comparison
Claude Code or Codex in September 2026: Pricing, Models and Fit
Claude Code or Codex in September 2026: local and synchronous vs cloud and async coding agents, compared on pricing, models, benchmarks and EU data residency.
8 min readLangGraph, CrewAI or Google ADK? One Two-Agent Task, Three Frameworks
Compare LangGraph, CrewAI and Google ADK by building the same researcher-writer pair, then choose with five ordered questions about control, speed and A2A.
6 min readEight Free Vector Databases for AI Agents Compared: Limits, Fit and Trade-offs
Eight vector databases with free tiers compared for agent memory: hard limits, deployment fit, concurrency, and which one suits AI agents in your environment.
11 min read
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