I recently completed Makr.io – 15 simple web apps, all open source on GitHub, created in just 30 days using Next.js, Vercel for hosting, and plenty of help from Claude and ChatGPT. Each app took me around 2-3 hours to build, with more time spent brainstorming ideas and framing problem statements.

Here’s my approach: I’d start with an idea and problem statement, then ask Claude for a detailed Python script to set up the project. Using the generated code as a foundation, I focused on refining essentials like mobile optimization and core functionality. This project was mostly built during early mornings and late nights as a personal challenge.

Here’s a sample of the apps:

SVG to PNG – Convert SVG files to PNG Email Preview – Preview HTML emails RSS Feed Reader – Read top RSS feeds DMARC Checker – Check DMARC records Event Countdown - Create countdowns for special days Email header analyzer HN client with dynamic sitemap

You can find the full collection on GitHub all open sourced.