LinkedIn Publications Backup

Welcome to the repository where I keep a local copy of the posts and articles I’ve shared on LinkedIn. Think of it as a personal archive—a place to stash thoughts, drafts, and the occasional long‑form piece before (or after) they appear on my profile.

If you’re curious about the original content, you can find me on LinkedIn at: https://www.linkedin.com/in/carlos-baeza-negroni/

Articles & Pieces

• Vibe Coding Your First API: How We Built LaunchPad API in Days — A detailed walkthrough of building a production‑ready API with CodeIgniter 4 and Shield, written for founders who want to ship backend functionality without hiring developers.

• Understanding AI Agent Skills: A Comprehensive Guide — A deep dive into what makes AI agents work, including their core capabilities, training methods, and real-world applications.

• From Vibe Coder to Onchain Wizard: The Gamified Web3 and Solidity Mastery Platform — Traces my journey building a gamified learning platform for Web3 and Solidity to participate in Avalanche's "Build Games" Hackathon, sharing lessons learned and technical challenges along the way.

• The Complete Handbook to Ethereum Improvement Proposals (EIPs/ERCs) — An in-depth guide covering what EIPs and ERCs are, how proposals are written, reviewed, and implemented, and how they shape Ethereum's protocol and ecosystem.

• Building Your Own Web AI Assistant: A Complete Hands-On Guide with CodeIgniter4, Next.js, and OpenRouter — A comprehensive guide to building a fully functional AI-powered chat assistant from scratch. Learn how to combine CodeIgniter 4's robust backend capabilities with Next.js 16's modern frontend features, all connected to OpenRouter's powerful AI API infrastructure. Includes complete working code, enterprise-grade architecture, and step-by-step implementation details.

• Hardhat Essentials: Your Non-Technical Introductory Guide to Building Solidity Smart Contracts with Confidence — A comprehensive guide to building Solidity smart contracts with Hardhat. Learn how to set up your development environment, write and test smart contracts, configure networks, and leverage the powerful plugin ecosystem.

• Solidity by Example: A Comprehensive Guide with Working Code for Production Smart Contracts — A comprehensive guide covering Solidity from basics to advanced DeFi patterns. Learn data types, gas optimization, security best practices, tokens, flash loans, governance systems, and proxy upgrade patterns with working code examples for production-ready smart contracts.

• My Unexpected Journey into LM Studio: The Questions That Guided Me Running AI Locally — A practical guide to running AI locally on your own computer using LM Studio. Learn why local AI matters for speed, cost, privacy, and independence. Covers hardware requirements, installation, model parameters, thinking capabilities, inference, and temperature settings with simple explanations for beginners.

• Vibe2Wizard Avalanche Hakachton Update: Project Repository And Contracts Under The Hood — A technical deep-dive into the Vibe2Wizard smart contract architecture and frontend implementation. Covers soulbound NFTs, binary search level calculations, gas optimization, on-chain metadata generation, React component patterns, Wagmi custom hooks, and the complete onboarding experience. Includes extensive Solidity and TypeScript code snippets with explanations.

• Building a Decentralized Autonomous Organization: A Complete Hands-On Guide to DAO Governance — A comprehensive guide to building a fully functional decentralized autonomous organization (DAO) governance system. Learn how to combine OpenZeppelin's battle-tested smart contracts with Tally's governance interface for secure, transparent community decision-making. Includes token-based voting, proposal management, automated execution, and enterprise-grade architecture for deploying and managing DAOs.

• Tokenization Decoded: The Complete Non-Technical Guide to Asset Tokenization on Ethereum with Solidity — A comprehensive guide to asset tokenization on Ethereum using Solidity, designed for beginners and non-technical readers. Covers the three major token standards (ERC-20, ERC-721, and ERC-1155), explains how smart contracts power tokens, and walks through building secure, compliant token implementations with OpenZeppelin. Includes tokenomics design, security best practices, development tools, regulatory considerations, and real-world use cases including fractional ownership, NFTs, and compliant tokenization with ERC-3643.

• Build Your First DeFi Staking Dapp on Ethereum: A Hands-On Guide Leveraging Solidity's OpenZeppelin ERC-4626 Standard with Nextjs — A hands-on guide to building a DeFi staking application on Ethereum using the ERC-4626 standard. Learn how to create a production-ready staking vault with OpenZeppelin's audited contracts, implement secure token economics with inflation attack protections, and build a Next.js frontend to interact with your smart contract. The guide covers the two-token architecture (assets and shares), exchange rate mechanics, complete function reference, and deployment to testnet—all with working code examples.

• OpenCode Agents Fundamentals: Create, Configure, Deploy Custom Agents and Automated Workflows — A comprehensive guide to creating, configuring, and deploying custom agents and automated workflows with OpenCode. Learn the fundamentals of OpenCode's agent system, working with built-in agents like build and plan, creating custom agents using JSON and Markdown configuration formats, and leveraging specialized subagents for security auditing, documentation, and code review.

• DEX and AMM Foundations: A Beginner's Introduction to Decentralized Exchanges and Automated Market Making on Ethereum — A comprehensive beginner's guide to Decentralized Exchanges (DEXs) and Automated Market Makers (AMMs) on Ethereum. Learn the fundamentals of blockchain and cryptocurrency, including what money is, how blockchains work, Ethereum and smart contracts, crypto wallets and self-custody, stablecoins, and DeFi. Understand how liquidity pools and the x*y=k formula power AMMs, concepts like slippage, price impact, and impermanent loss, and get a practical step-by-step walkthrough of using Uniswap.

• Ethereum Cryptography Demystified: A Beginner's Journey From Signatures to Smart Contracts with Code Examples — A comprehensive beginner's guide to cryptography in Ethereum. Covers digital signatures using ECDSA with secp256k1, comparing ECDSA, P256, and RSA signature types, signature verification with OpenZeppelin libraries, Merkle trees for efficient on-chain verification, hash functions including Keccak-256 and SHA-3, the full derivation path from private key to Ethereum address with EIP-55 checksums, the ecrecover precompile, EIP-712 for typed structured data signing, and practical OpenZeppelin utilities for storage optimization, safe math, and data structures.

• Deconstructing Karpathy's Autoresearch: A Line-by-Line Guide to Autonomous AI Training with Practical Examples — A comprehensive beginner-friendly guide to Andrej Karpathy's Autoresearch project. Explores autonomous AI training—an AI agent that iteratively improves its own training code through hundreds of experiments. Learn about the 5-minute experiment loop, git branch workflow, val_bpb metric, and the three core files: prepare.py, train.py, and program.md.

• Build Your Own OpenClaw-Inspired Telegram Bot: A Hands-On Guide to OpenCode SDK Integration With OpenRouter Model Agents — A comprehensive guide to building a Telegram bot that integrates with the OpenCode SDK and OpenRouter model agents. Learn how to set up a Node.js application, configure environment variables, handle Telegram messaging, and leverage AI-powered coding assistance through simple text messages. Includes detailed explanations of project structure, dependencies, session management, security best practices, and practical code examples.

• The Beginner's Hands-On Guide to RWA Tokens on Ethereum: Solidity, Hardhat, OpenZeppelin, and Next.js Dashboard — A comprehensive, beginner-friendly guide to building Real World Asset (RWA) tokens on Ethereum. The tutorial walks you through creating a production-grade smart contract that implements regulatory compliance features like token freezing, access restrictions, and role-based administration using OpenZeppelin's audited libraries. You'll learn Solidity fundamentals, Hardhat deployment workflows, and how to build a Next.js dashboard with Wagmi and RainbowKit for wallet interactions. The complete project includes a deployed token contract, detailed code explanations covering inheritance chains, modifiers, events, and error handling, plus a working web interface for minting, transferring, and monitoring token activity. Perfect for developers new to blockchain who want to understand how to tokenize real-world assets with proper security and compliance measures.

• Building a Fractional Real Estate NFT Platform: A Hands-On Tutorial for Tokenization on Ethereum using Solidity and Next.js — A complete, production-ready fractional real estate NFT platform that demonstrates practical tokenization of physical property on Ethereum. The tutorial provides a full-stack implementation combining Solidity smart contracts with Next.js, featuring an ERC721-based fractional ownership system where users purchase property shares using USDT stablecoin. The project includes comprehensive testing with 35 test cases covering all contract functions, detailed code explanations of inheritance patterns, access control, and payment processing workflows. The smart contract implements property metadata management, tokenURI generation with NFT marketplace compatibility, and secure USDT payment handling. The frontend dashboard built with Next.js, Wagmi, and RainbowKit provides wallet connection, real-time balance displays, approval flows, and transaction tracking. Perfect for developers wanting hands-on experience with real-world asset tokenization, covering the complete workflow from smart contract development and testing to frontend integration and deployment.

• Beginner's Automation Foundations: An OpenClaw Compatible Skills Framework for Autonomous Agentic Google Workspace Orchestration in Python — A comprehensive tutorial on building an OpenClaw-compatible skills framework for autonomous Google Workspace orchestration in Python. The tutorial provides a complete production-ready system for programmatic email and calendar management using Gmail and Google Calendar APIs with OAuth 2.0 authentication. The architecture demonstrates four core skills (send email, read email, reply email, create calendar events) that can be orchestrated by AI agents for autonomous workflows. The implementation includes a reusable google_operations library, command-line tools, detailed OAuth setup instructions, and examples of multi-step orchestration patterns like email-to-calendar booking and intelligent reply automation. Perfect for developers wanting to understand agentic orchestration principles, secure API integration, and how to wrap external services as AI-accessible skills. The tutorial covers everything from Google Cloud project setup and credential management to building extensible skill architectures that enable autonomous agents to interact with real-world services.

• Slither, Solhint & Mythril: A Beginner's Introduction to Essential Security for Smart Contracts Using Semantic Analysis Auditing Tools — A beginner's guide to essential smart contract security tools. Covers Slither (Trail of Bits' static analysis scanner with 100+ detectors), Solhint (a Solidity linter for security and style), and Mythril (symbolic execution analysis). Learn how these tools detect common vulnerabilities like reentrancy, access control issues, integer overflow/underflow, front-running, and gas optimization problems.