With Claude Code’s assistance, I built a React-based app featuring a simple countdown. Claude handled the entire process — developing the app, installing all necessary packages and dependencies, pushing it to GitHub, and connecting it to Vercel.

I also added a system, light and dark mode to the application. Again, Claude Code essentially carried out all the work.

Finally, I had Claude Code configure Sentry to monitor the blog in real time, with the added ability to query Sentry through their MCP server.