@Donnie7x

We watched 25 hours of MIT's Distributed Systems Course, so you don't have to. PART - 1 [INTRODUCTION]

Nov 30, 2025 · 9 min read · Introduction Distributed systems are the backbone of modern applications. Every time you open an app, stream a video on YouTube, store a file in the cloud, or even send a transaction on the blockchain, you interact with hundreds of computers working ...

HTTP 402 Was Left Unused for 30 Years — Until Now [x402]

Nov 9, 2025 · 7 min read · Introduction When the web first took shape in the early 1990s, the architects of HTTP (Hypertext Transfer Protocol) reserved a status code: 402 Payment Required. It was meant to signal that users should pay before accessing certain resources, but the...

Understanding Frontrunning in Blockchain: How Transactions Get Hijacked

Aug 16, 2025 · 9 min read · Introduction Frontrunning is a real problem in the decentralized space, which often goes unnoticed by everyday crypto users. It affects transactions, increases gas costs, and creates unfair outcomes for users. This article explains what frontrunning ...

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Build and Deploy a Simple Sepolia Faucet with Solidity and Foundry

May 9, 2025 · 8 min read · Introduction Imagine you have a group of friends who test Ethereum protocols. The group members get faucets manually, where the admin sends sepolia ETH to addresses, one at a time. This process is stressful and takes a lot of time. Luckily, there’s a...

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"Vitalik’s Radical Proposal Explained: Why Replace EVM with RISC-V?"

Apr 26, 2025 · 6 min read · Introduction In a move that could redefine the future of Ethereum, co-founder Vitalik Buterin proposed in April 2025 replacing the Ethereum Virtual Machine (EVM)—the core of transaction processing and smart contract execution, with RISC-V as the new ...