Engineering Notes

Insights & Thoughts

Deep dives into system architectures, performance optimizations, and technical tutorials.

AI & Machine Learningdeep dive

The Post-Truth Test Suite: 4 Ways CI Lying to You and How AI Agents Make It Worse

Learn how AI-written agents turn flaky, incomplete, and misleading CI pipelines green—and how to build a post-truth test suite engineers can trust.

Oct 30, 2026• 24m
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AI & Machine Learningdeep dive

Resilience Is the New UX: Building Offline-First Real-Time Apps That Survive Network Failure

Learn to build offline-first real-time apps with sync engines, CRDTs, and conflict resolution. A practical deep-dive into network-resilient architecture.

Oct 29, 2026• 18m
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AI & Machine Learningdeep dive

Securing AI Coding Agents: Building Sandboxed, Policy-Driven Harnesses Against Prompt Injection, Log Poisoning, and Agent Drift

A deep-dive into the architecture of secure AI coding agent harnesses — sandboxing, policy enforcement, and defense against prompt injection, log poisoning, and agent drift.

Oct 29, 2026• 18m
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AI & Machine Learningdeep dive

The 80% That Breaks AI Features: Building Production Agents Beyond Prompting

Prompting is only 20% of a working AI feature. Learn the orchestration, tooling, guardrails, and observability that make agents survive production.

Oct 29, 2026• 18m
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Next.js & Reacttutorial

Build Once, Render Anywhere: Generating OG Images and PDFs from JSX/HTML Without a Headless Browser Using Rust-Powered Takumi

Learn how to generate social cards and PDFs from JSX/HTML using Takumi, a Rust-powered renderer that eliminates headless browser overhead.

Oct 29, 2026• 12m
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AI & Machine Learningdeep dive

From Prompt to Production: The Hidden Engineering Behind Generative AI Features

Explore the full-stack engineering—from prompt design to deployment—that turns a generative AI idea into a reliable production feature.

Oct 28, 2026• 14m
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AI & Machine Learningdeep dive

MCP, Antivirus, and Tests: Building the Trust Stack for AI Agents

How Model Context Protocol, security guards, and rigorous tests form a three-layer trust stack that makes AI agents safe enough for production.

Oct 28, 2026• 18m
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Web Architecture & Performancedeep dive

Optimizing Large-Scale MongoDB Aggregation Pipelines: A Deep Dive into Performance Engineering

Master MongoDB aggregation pipeline optimization with index strategies, pipeline restructuring, memory management, and sharding techniques for production-scale workloads.

Oct 28, 2026• 22m
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AI & Machine Learningdeep dive

The AI Terminal Gatekeeper: Designing Sandboxed Execution for Autonomous Code Agents

Stop handing root to AI agents. Learn how to build execution boundaries, semantic filters, and audit logs to keep autonomous terminal tools safe in production.

Oct 28, 2026• 18m
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AI & Machine Learningdeep dive

The AI Antibody: Building Defensive Agents to Secure Your Local Development Environment Against Autonomous Coding Tools

Deep dive into The AI Antibody: Building Defensive Agents to Secure Your Local Development Environment Against Autonomous Coding Tools.

Oct 27, 2026• 1m
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AI & Machine Learningdeep dive

Root on Local: Threat-Modeling Local-First AI Coding Agents

Why local AI coding agents like qwen-code hold root privileges, and how to build a secure, sandboxed workflow using Docker and minimal permissions.

Oct 27, 2026• 18m
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AI & Machine Learningdeep dive

Beyond the Chatbot: Building a Secure Local Multi-Agent OS for Autonomous Task Execution

Deep dive into Beyond the Chatbot: Building a Secure Local Multi-Agent OS for Autonomous Task Execution.

Oct 27, 2026• 1m
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