Tech on David Zhang | AI Engineering, Careers & Industry Deep-Dives https://ryrenz.com/tags/tech/ Recent content in Tech on David Zhang | AI Engineering, Careers & Industry Deep-Dives Hugo -- 0.155.3 en-US Sat, 09 May 2026 14:44:11 -0400 If You Know Nothing About Startups: A Startup Guide for Technical People https://ryrenz.com/startup/zero-startup-guide/ Sat, 09 May 2026 14:44:11 -0400 https://ryrenz.com/startup/zero-startup-guide/ If you have a technical background, you will find that 70% of real startup problems have nothing to do with code. The product is only step one. After that come sales, communication, cash flow, debt, cofounders, and timing. Tools vs. Skills vs. MCP https://ryrenz.com/ai/claude-code-tools-mcp-skills/ Fri, 20 Feb 2026 02:13:42 -0500 https://ryrenz.com/ai/claude-code-tools-mcp-skills/ Clarifies the distinction between Tools (primitive functions), Skills (complex workflows), and the Model Context Protocol (MCP) in agentic AI, providing an architectural framework for developers to choose the right abstraction for their use case. How to make your agent smart as openclaw https://ryrenz.com/ai/openclaw-memory-system-guide/ Wed, 18 Feb 2026 02:03:38 -0500 https://ryrenz.com/ai/openclaw-memory-system-guide/ Provides a practical guide to implementing a persistent memory system for AI coding agents, advocating for a simplified, file-based approach with a manual ‘/save’ command to capture session context, delivering most of the value with minimal complexity. How I Built an iOS App MVP in 4 Hours: A Blueprint for AI-Driven Development https://ryrenz.com/tech/build-ios-app-with-vibecoding/ Sat, 14 Feb 2026 19:36:00 -0500 https://ryrenz.com/tech/build-ios-app-with-vibecoding/ Outlines a disciplined, four-phase framework for rapidly building a production-ready iOS MVP using an AI assistant, emphasizing rigorous upfront system design, sequenced prompting, and a strict validation loop with atomic Git commits. Why This OpenClaw Exploded in a Week https://ryrenz.com/ai/why-openclaw-went-viral/ Fri, 13 Feb 2026 03:14:42 -0500 https://ryrenz.com/ai/why-openclaw-went-viral/ Analyzes the viral success of OpenClaw, an open-source AI assistant that operates locally with OS-level execution, exploring its key innovations like proactive tasks and a decentralized skill ecosystem, while also highlighting its significant security implications.