The latest articles on DEV Community by Egor Ivashchenko (@apeces). https://dev.to/apeces https://media2.dev.to/dynamic/image/width=90,height=90,fit=cover,gravity=auto,format=auto/https:%2F%2Fdev-to-uploads.s3.amazonaws.com%2Fuploads%2Fuser%2Fprofile_image%2F3900882%2F97d774b0-de94-4ebb-8f4d-1c6ebf2f9471.png https://dev.to/apeces en Egor Ivashchenko Mon, 27 Apr 2026 16:30:14 +0000 https://dev.to/apeces/i-built-leetcode-for-web3-developers-looking-for-20-beta-testers-169e https://dev.to/apeces/i-built-leetcode-for-web3-developers-looking-for-20-beta-testers-169e <p>After months of building, I created <strong>CodeChain</strong> — a competitive programming platform specifically for blockchain developers.<br> What makes it different from LeetCode:<br> _<em>— Problems in Solidity, Rust, Move, Cairo (not Python/Java)<br> — Guild Wars system — compete as a team, not just individually<br> — Real compiler in the browser, like VS Code</em><br> Right now I have 26 problems and looking for the first 20 developers to try it and tell me honestly what's missing.<br> Free. No credit card. Just honest feedback.<br> Comment below or DM me if interested.</p> <p><a href="https://media2.dev.to/dynamic/image/width=800%2Cheight=%2Cfit=scale-down%2Cgravity=auto%2Cformat=auto/https%3A%2F%2Fdev-to-uploads.s3.amazonaws.com%2Fuploads%2Farticles%2Fjgq282fa4r0k861z3jxq.png" class="article-body-image-wrapper"><img src="https://media2.dev.to/dynamic/image/width=800%2Cheight=%2Cfit=scale-down%2Cgravity=auto%2Cformat=auto/https%3A%2F%2Fdev-to-uploads.s3.amazonaws.com%2Fuploads%2Farticles%2Fjgq282fa4r0k861z3jxq.png" alt=" " width="800" height="459"></a></p> blockchain showdev sideprojects web3