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Concept explainers and best practices for Web3 developers.
Gas fees are the most confusing part of using crypto. Here's what they are, why they spike, why an L2 transfer is cheap but mainnet sometimes costs $40, and how to time transactions for the lowest cost.
Block explorers reveal everything happening on a blockchain — if you know what you're looking at. Here's how to actually read transaction details, decode contract calls, and spot the things that matter.
Every few months, a blockchain you use will go through a hard fork. Here's what that actually means, what happens to your wallet and your assets, and why you almost never need to do anything.
Every Web3 wallet, dApp, and tool talks to blockchains through JSON-RPC. Here's what that means, how it works, and why understanding it makes you a better Web3 developer.
