💥 Tech Talks Weekly #75

Sep 17, 2025

Happy Wednesday 👋

Warm welcome to Tech Talks Weekly #75! We have lots of new really good talks on the list, so get ready!

I’ve recently posted a compilation of the most-watched Java talks of 2025 (so far). Check it out if you missed it:

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Now, let’s jump right in!

🏆 Featured talks of the week

Here are our top recommendations this week. Make sure to watch or bookmark!

"The 3 Golden Rules of Distributed Systems" ⸱ +800 views ⸱ 15 Sep 2025 ⸱ 00h 50m 50s
tldw: Sam Newman explores the essential principles of distributed systems, focusing on the critical concepts of timeouts, retries, and idempotency. You'll learn how proper timeouts prevent resource saturation, retries handle transient failures, and idempotency ensures safe repeated operations.
"The Boeing 737 MAX: When Humans and Technology Don't Mix - Kyle Kotowick - DDD Europe 2025" ⸱ +200 views ⸱ 15 Sep 2025 ⸱ 00h 51m 25s
"Jack Sharkey - The $1B Rails Startup: Scaling from 0 to Unicorn in Four Years" ⸱ +1k views ⸱ 15 Sep 2025 ⸱ 00h 25m 27s
tldw: In this talk, the speaker shares the journey of scaling their startup using Ruby on Rails to a unicorn. He emphasizes Rails' competitive edge by discussing its role in handling $1B+ transactions and 150k RPM with a small team of engineers. He shows how a strong framework can help in rapid development and encourages entrepreneurs to start using Rails.
"Better Assertions with AssertJ by Tim te Beek @ Spring I/O 2025" ⸱ +2k views ⸱ 12 Sep 2025 ⸱ 00h 47m 31s
tldw: You'll see how AssertJ provides a more fluent API, improving the clarity and effectiveness of test failures. The speaker also shares practical ways to migrate existing tests to AssertJ.
"Secure Java Applications against Quantum Threats by Ana Maria Mihalceanu @ Spring I/O 2025" ⸱ +1k views ⸱ 12 Sep 2025 ⸱ 00h 47m 40s
tldw: The speaker emphasizes the urgency of adopting Hybrid Public Key Encryption (HPKE). She explains how Java applications can resist both classic and quantum attacks by integrating HPKE, using asymmetric KEM, key derivation functions (KDF), and authenticated encryption. If this sounds magical enough, go ahead and watch this talk!
"Modern React Patterns: Concurrent Rendering, Actions & What’s Next | Aurora Scharff at RUC 2025" ⸱ +24k views ⸱ 10 Sep 2025 ⸱ 00h 26m 32s
tldw: You’ll learn about advanced React patterns in React 19 that tackle challenges like UI flicker and state management. You’ll learn about hooks like useTransition, useDeferredValue, and useOptimistic along with practical examples.
"Worklets Everywhere: Multithreading in React Native | Tomasz Żelawski at React Universe Conf 2025" ⸱ +600 views ⸱ 10 Sep 2025 ⸱ 00h 21m 27s
tldw: You'll learn how React Native is advancing beyond single-threaded JavaScript with "react-native-worklets", a library that enables concurrent execution across multiple threads. The speaker explains how worklets enhance performance by moving tasks like animations and gestures off the main JS thread to use multiple CPU cores.
"Kate Marshalkina - At the top of the pyramid: Playwright testing at scale" ⸱ <100 views ⸱ 13 Sep 2025 ⸱ 00h 17m 51s
tldw: The speaker walks us through the challenges of scaling Playwright tests from 0 to 20,000 lines. She outlines how her team overcame hurdles like test dependencies and slow execution times by employing strategies like the "testing mushroom" model, which prioritizes isolated tests.
"Rahul Nanwani - High-quality, performant images & videos on your React website (and some AI magic!)" ⸱ <100 views ⸱ 13 Sep 2025 ⸱ 00h 14m 25s
tldw: The speaker delves into optimizing media for faster loading while maintaining quality in React applications. You'll discover techniques like using next-gen formats, lazy loading, resizing images, and replacing GIFs with videos.

📆 New talks

Here’s the complete list of all the talks published since the last Tech Talks Weekly issue, grouped by conference, and ordered by the number of views for your convenience.

That’s it for today!

‼️ Let me know what you think about this issue

Enjoy the weekend ☀️ and see you next week!

Tech Talks Weekly

💥 Tech Talks Weekly #75

🏆 Featured talks of the week

📆 New talks

CITYJS LONDON 2025

React Universe Conf 2025

InfoQ Dev Summit 2024

PyCon Australia 2025

Rails World 2025

DDD Europe 2025

Code BEAM Lite Stockholm 2025

ElixirConf EU 2025

JCON EUROPE 2025

Spring I/O 2025

C++ on Sea 2025

ACCU 2025

KotlinConf'25

AI_dev Europe 2025

GOTO 2025

Optimized AI 2025

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