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1. an open-source archive of failed saas projects, sharing honest post-mortems, lessons learned, and source code so others can build smarter next time

   TypeScript 100 5

3. A web-based code runner for Python and C# that executes user-defined functions against predefined test cases using Docker, with a dynamic web interface for easy testing and learning.

   TypeScript 1

4. a collaborative, open source collection of mathematical simulations implemented in multiple programming languages.

   Python 1

6. a visual daily progress tracker for challenges. add “post-it” style notes to a virtual canvas, summarise each day, track emotions, randomise layouts, and export as png. perfect for seeing that show…

   JavaScript 1