The latest articles on DEV Community by nitish kumar (@nitish_kumar_19ec9e83be25). https://dev.to/nitish_kumar_19ec9e83be25 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%2F3904494%2Fed54f726-c397-4b44-ad7a-4c84686cad82.png https://dev.to/nitish_kumar_19ec9e83be25 en nitish kumar Sun, 03 May 2026 07:12:27 +0000 https://dev.to/nitish_kumar_19ec9e83be25/i-built-a-real-time-competitive-coding-platform-dev-battle-173l https://dev.to/nitish_kumar_19ec9e83be25/i-built-a-real-time-competitive-coding-platform-dev-battle-173l <p>Solo coding practice gets stale. I wanted something with real stakes — a platform<br> where two developers compete live on the same problem, under the same clock.<br> That's <strong>Dev-Battle</strong>.</p> <h2> How a match works </h2> <ol> <li>Create or join a lobby</li> <li>Problem is broadcast to both players</li> <li>Write and submit your code</li> <li>Sandboxed runner judges the output</li> <li>AI feedback is shown in the arena</li> <li>XP and leaderboard rankings update live</li> </ol> <h2> Features </h2> <ul> <li> <strong>Real-time rooms</strong> — synchronized match state via WebSockets, low-latency updates</li> <li> <strong>Sandboxed execution</strong> — isolated runners for safe, reproducible judging</li> <li> <strong>AI feedback</strong> — hints and notes without giving away the answer</li> <li> <strong>Progression system</strong> — XP, achievements, and a global leaderboard</li> <li> <strong>Monorepo architecture</strong> — shared types and codegen keep client and server in sync</li> </ul> <h2> Stack </h2> <div class="table-wrapper-paragraph"><table> <thead> <tr> <th>Layer</th> <th>Tech</th> </tr> </thead> <tbody> <tr> <td>Frontend</td> <td>React + Vite + TypeScript</td> </tr> <tr> <td>Backend</td> <td>Node.js + WebSockets + REST</td> </tr> <tr> <td>Execution</td> <td>Sandboxed container runner</td> </tr> <tr> <td>Database</td> <td>SQL + Drizzle ORM</td> </tr> <tr> <td>AI layer</td> <td>Optional AI microservice</td> </tr> <tr> <td>Tooling</td> <td>pnpm monorepo + OpenAPI codegen</td> </tr> </tbody> </table></div> <h2> What's next </h2> <p>Spectator mode, tournament brackets, team modes, and a more polished mobile UI<br> are all on the roadmap. Contributions and feedback are very welcome!</p> <p><a href="https://github.com/beatable-12/Dev-Battle" rel="noopener noreferrer">GitHub</a> | <a href="https://realtime-music-visualizer--githubnitish.replit.app/" rel="noopener noreferrer">Live Demo</a></p> <p>Have questions about the architecture or built something similar? Drop a comment!</p> showdev webdev typescript react