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THE LOG BOOK

Field notes from the build

Practical writing on web performance, smart contract security, AI automation, and the decisions behind shipping real software — from the engineers who do the work.

Enterprise

Building Dashboards That Don't Melt: Data Aggregation Patterns for Real-Time Analytics

Real-time dashboards slow to a crawl when they aggregate raw data on every load. Here are the data aggregation patterns — pre-aggregation, materialized views, rollups, and caching — that keep them fast at scale.

4 min read
Web Development

Shipping a Full-Stack App in 2026: Next.js + NestJS + Postgres on Railway

A 2026 reference architecture and deploy guide for a production full-stack TypeScript app — Next.js frontend, NestJS API, PostgreSQL, in a monorepo deployed on Railway, with a real cost breakdown.

5 min read
Web Development

React Native in 2026: When Cross-Platform Mobile Is the Right Call

A 2026 decision guide for choosing a mobile stack — when React Native beats native, Flutter, and bare workflows, what the New Architecture changed, and when you should not go cross-platform.

4 min read
AI Engineering

How to Build an AI Chatbot for Your Website in 2026 (Grounded in Your Own Data)

A practical guide to building a website AI chatbot that answers from your own content using RAG — the architecture, the build steps, what it costs, and how to keep answers accurate.

4 min read
AI Engineering

How to Add an AI Feature to Your Existing App (2026 Architecture Playbook)

A practical architecture for shipping an AI feature into a production app in 2026 — where the LLM sits, how to stream responses, guardrails, evaluation, and keeping costs under control.

4 min read
AI Engineering

RAG vs Fine-Tuning vs Prompt Engineering: How to Customize an LLM in 2026

A clear decision guide for adapting an LLM to your use case in 2026 — when to use prompt engineering, retrieval (RAG), or fine-tuning, and how to combine them without overspending.

4 min read
Blockchain

Smart Contract Security Checklist Before You Launch (2026)

An audit-ready, 12-point pre-launch checklist for smart contracts in 2026 — covering the access-control and reentrancy failures behind the largest losses, plus the tooling gates that catch them.

4 min read
Web Development

How to Fix INP in Next.js & React: A 2026 Production Playbook

Interaction to Next Paint is the Core Web Vital most React sites fail. Here are the five most common causes in Next.js and the concrete fixes that move the number — with expected deltas.

4 min read
AI Automations

Custom AI Agent vs. Zapier, Make & n8n: When to Build Instead of Buy

A vendor-neutral decision framework for 2026: when no-code automation tools are the right answer, when a custom AI agent pays off, and the hybrid pattern most teams actually need.

4 min read
AI Automations

What Does a Custom AI Agent Actually Cost in 2026?

A straight answer on custom AI agent pricing in 2026 — cost by agent type, the hidden line items that move the number, and how to calculate ROI before you commit.

4 min read

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