Closures explained simply

Today Quincy Larson interviews Sumit Saha, a software engineer and prolific teacher on YouTube. Sumit is based in Dhaka, Bangladesh, where he runs a developer agency building projects for clients throughout Asia.

We talk about: - How the hunger for learning is dying and people are increasingly drawn to shortcuts over taking the time to truly understand concepts - Sumit's information diet and his tips for expanding your skills - 5 key developer concepts explained like you're 5

Support comes from the 10,104 kind folks who donate to our charity each month. Join them and support our mission at https://donate.freecodecamp.org

Get a freeCodeCamp tshirt for $20 with free shipping anywhere in the US: https://shop.freecodecamp.org

Links from our discussion: - Sumit's many freeCodeCamp handbooks and tutorials: https://www.freecodecamp.org/news/author/sumitsaha/ - Sumit's website: https://www.sumitsaha.me/ - Sumit's Bangla-language YouTube Channel: https://youtube.com/@LearnwithSumit - Sumit's English YouTube Channel: https://youtube.com/@logicBaseLabs

Community news section:

1. I spent three days at the San Francisco Palace of Fine Arts recording a documentary about the world's largest collegiate hackathon. More than 3,000 student developers participated in this year's UC Berkeley Cal Hacks hackathon. Over the course of 36 hours, they built a broad array of projects, then demo'd them to judges from industry. I now present to you the finished documentary. I hope you find it both enjoyable and inspiring. (80-minute documentary): https://www.freecodecamp.org/news/inside-cal-hacks-2025-36-hours-at-the-worlds-largest-collegiate-hackathon/

2. freeCodeCamp also published a new course on building your own custom Kubernetes operators and controllers from scratch. You'll learn everything from the internal architecture of Informers and Caches to advanced concepts like Finalizers and Idempotency. If you're interested in DevOps, this is the course for you. (6 hour YouTube course): https://www.freecodecamp.org/news/build-your-own-kubernetes-operators-with-go-and-kubebuilder/

3. Learn how to select the best GPU for economically training your models and running inference workloads. This no-nonsense guide will help you understand why certain specs matter more than others. It will also help you navigate around common pitfalls when buying or renting GPUs. (35 minute read): https://www.freecodecamp.org/news/how-to-choose-the-best-gpu-for-your-ai-workloads/

4. Learn how to benchmark embedding models using your own custom data. This course will walk you through leveraging Vision Language Models for precise text extraction. You'll also learn how to use LLMs to generate synthetic evaluation data. Finally, you'll get exposure to the rigorous statistical tests that can help you find the best models for whatever hardware you have on hand. (4 hour YouTube course): https://www.freecodecamp.org/news/how-to-benchmark-embedding-models-on-your-own-data/

5. Our song of the week: Supergroup The Power Station's 1985 hit "Some Like it Hot". This entire album features incredible drumming by Chic drummer Tony Thompson. And with Bass and Guitars by Duran Duran's John Taylor and Andy Taylor, the whole song has insane groove. 80s icon Robert Palmer sings and brings the texture. The guy reportedly smoked 60 cigarettes a day and paid the price a few years later, but man is his voice golden on this recording. Fun fact: Duran Duran's official site says they achieved the massive drum sound by putting mics at the top of a nearby elevator shaft. https://www.youtube.com/watch?v=Hw1t7OCESUw