I totally agree that building real projects is the fastest way to level up your skills. I’ve noticed the same thing when playing simulation games — the more you actually “do” inside the game, the quicker you learn strategies. For example, in BitLife there’s the Bad Teacher Challenge, where you have to complete a set of tricky, step-by-step goals within one life. It’s kind of like a mini web dev project: you break it down into tasks, focus on each one, and see how fast you can finish. If anyone’s into gaming and wants a fun break between coding practice, here’s the full guide: Bad Teacher Challenge (https://bitlifeappspro.com/bad-teacher-challenge/) .

This is a solid and realistic guide for anyone serious about improving their web development skills. Starting with a portfolio site and progressing to React-based apps is a smart way to build both confidence and experience. I followed a similar path when learning to build my own BitLife Mod APK fan site — especially the To-Do List and API projects helped me manage dynamic content better. For anyone curious, you can check out how I applied those skills here: https://bitlifeappspro.com — it’s amazing how small projects can lead to something bigger!

Really impressive how you tackled the memory bottlenecks by combining Polars LazyFrame with batch processing! I’ve mostly worked on app-based projects like https://bitlifeappspro.com/, but seeing real-world data engineering solutions like this is really motivating to explore backend optimizations more seriously.