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Get ready for another exciting issue of Rust Trends! In this 41st edition, we spotlight the innovative integration of Rust into curl with its original developer, Daniel Stenberg. Dive into an exclusive interview and learn how Rust is revolutionizing this essential tool. Plus, catch up on highlights from the RustNL 2024 conference and discover the latest advancements in Rust's ecosystem, including the powerful parking_lot crate.

Join us as we explore these transformative developments in Rust programming. Your journey into the depths of modern software development starts here!

P.S. Due to holiday period, this edition of the newsletter was sent out later than planned. We appreciate your understanding and hope you enjoy the insights we've gathered for you!

Evolving curl: How Rust Is Shaping Its Future with Daniel Stenberg

Curl network connections

Join us on "Rust in Production", as we sit down with the legendary Daniel Stenberg, the original author and lead developer of curl. Hosted by Matthias Endler from Corrode, this episode dives deep into Daniel's pioneering journey of integrating Rust into curl, the internet transfer engine that powers devices and applications globally.

From his early days navigating the realms of open-source in the '90s to steering one of the most essential tools on the internet, Daniel shares his insights and challenges of melding Rust's modern capabilities with curl's robust legacy. Discover how this integration is shaping curl's future and what it means for the vast ecosystem of developers relying on it.

🔗 Tune in to uncover:

  • The origins and evolution of curl under Daniel’s leadership.
  • Practical impacts of Rust on curl’s development and performance.
  • Daniel’s perspective on Rust’s role in future-proofing foundational software.

Whether you're a developer, a tech enthusiast, or someone curious about the intersection of traditional and modern programming paradigms, this episode is packed with enriching content that will give you a new appreciation for the backend processes that run our digital world.

🎧 Listen now to gain exclusive insights into the synergy between old and new school programming through Daniel’s expert lens!

RustNL 2024 conference

RustNL 2024 Conference

The RustNL2024 conference took place on the 7th and 8th of May, successfully gathering Rust enthusiasts and experts from around the world, including notable figures like Mara Bos and Niko Matsakis and a sold out workshop from Luca Palmieri. The event featured a series of engaging and insightful talks, each shedding light on various aspects of Rust programming and its applications.

For those who couldn't attend in person or wish to revisit the highlights, recordings of all the sessions are conveniently available on YouTube. Explore the innovative discussions and learnings of Day 1 and Day 2 by checking out the recorded livestream for each day. Look at the schedule for the given talks.

Enhancing Concurrency in Rust with the parking_lot Crate


The parking_lot crate in Rust offers a refined and optimized alternative to the standard library's synchronization primitives, such as mutexes and condition variables. It provides more compact and faster implementations of locks, which often result in better performance for applications.

One of the main reasons to consider using parking_lot is its efficient handling of thread locking and unlocking, which can lead to reduced contention and overhead in multithreaded scenarios. Unlike the standard Rust mutexes that rely on OS primitives, parking_lot mutexes are based on a spinning model followed by an OS-assisted sleep model when contention is detected. This approach typically uses less memory and offers faster lock acquisition and release in both contested and uncontested scenarios.

Integration can be as simple as find and replace in your code, because in most cases parking_lot uses the same interfaces as the standard library's synchronization primitives.

In summary, if your Rust application requires efficient concurrency management and you encounter limitations with the standard library's primitives, parking_lot might offer the performance improvements and additional features you need.


  1. $1M Microsoft Donation to Fund Rust Foundation
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  3. Rust 1.78 Release

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Cheers, Bob Peters