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PODCAST

Developer Voices

Deep-dive discussions with the smartest developers we know, explaining what they"re working on, how they"re trying to move the industry forward, and what we can learn from them.You might find the solution to your next architectural headache, pick up a new programming language, or just hear some good war stories from the frontline of technology.Join your host Kris Jenkins as we try to figure out what tomorrow"s computing will look like the best way we know how - by listening directly to the

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All Episodes

102:21

Creating and Evolving Elixir (with José Valim)

Developer Voices ·

2024/07/10

Back in 2012, José Valim started building Elixir to as a way to have his ideal programming language running on the same platform as Erlang. Fast-forward 12 years and it’s become build anything from distributed infrastructure to notebooks and websites.In this week’s Developer Voices, José joins us to tell the history of Elixir in a series of design choices. Which features mattered to him in the early days, and which ones excite him most now. What’s going on under the hood to make Elixir tick, and

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94:29

PyO3: From Python to Rust and Back Again (with David...

Developer Voices ·

2024/07/03

There’s huge pressure on Python at the moment to get faster, ideally without changing at all. One increasingly–popular way of achieving that impossible task is to push the performance critical code down into C, C++, or Rust. And this week we’re focussing on the Python route, as we take a look at PyO3.David Hewitt’s the principal committer to PyO3, and he joins us to go through the easy parts, the hard parts, and the works in progress, giving us an insight into how Python and Rust work under the

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71:04

NATS & Jetstream: The System Communication Toolkit ...

Developer Voices ·

2024/06/26

Most message systems have an opinion on the right way to do inter-systems communication. Whether it’s actors, queues, message logs or just plain ol’ request response, nearly every tool has decided on The Right Way to do messaging, and it optimises heavily for that specific approach. But NATS is absolutely running against that trend.In this week’s episode, Jeremey Saenz joins us to talk about NATS, the Cloud Native Computing Foundation’s configurable message-passing and data-transfer system. The

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78:53

Cuis Smalltalk and the History of Computing's Future...

Developer Voices ·

2024/06/19

Smalltalk is one of those programming languages that’s lived out of the mainstream, but often referenced as an influence and an important part of programming history. It’s the cornerstone of object-oriented programming, it was into message passing before actors were cool, and it blurs the line between operating system, programming language and personal notebook. But what is it?Joining us to discuss it is Juan Vuletich, the creator of one of Smalltalk’s latest incarnations, Cuis. In this episode we

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84:21

The Inko Programming Language, and Life as a Language...

Developer Voices ·

2024/06/12

This week we take a close look at the language Inko from two perspectives: The language design features that make it special, and the realities of being a language developer.Yorick Peterse joins us to discuss why he’s building Inko, and which design sweetspots he’s looking for. We begin with memory management, aiming for the kind of developer who wants control, but without the complexities of Rust. Then we look at the designing for concurrency with typed channels, and handling exceptions by removing

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83:51

Building the Zed Text Editor (with Nathan Sobo)

Developer Voices ·

2024/06/05

I’ve often wondered how you build a text editor. Like many software projects, it’s a simple idea at the core with an almost infinite scope for features. How do you build a solid foundation to expand on? Which features matter for launch? And how do you hope to satisfy the needs of every programmer, working in every language?My guest for this episode is Nathan Sobo. He’s tackled this problem once before with the Atom editor, and he’s back older & wiser with Zed - a new editor written completely

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83:04

Reimplementing Apache Kafka with Golang and S3

Developer Voices ·

2024/05/29

This week on Developer Voices we’re talking to Ryan Worl, whose career in big data engineering has taken him from DataDog to Co-Founding WarpStream, an Apache Kafka-compatible streaming system that uses Golang for the brains and S3 for the storage. Ryan tells us about his time at DataDog, along with the things he learnt from doing large-scale systems migration bit-by-bit, before we discuss how and why he started WarpStream. Why re-implement Kafka? What are the practical challenges and cost benefits

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67:33

Extending Postgres for High-Performance Analytics...

Developer Voices ·

2024/05/22

PostgreSQL is an incredible general-purpose database, but it can’t do everything. Every design decision is a tradeoff, and inevitably some of those tradeoffs get fundamentally baked into the way it’s built. Take storage for instance - Postgres tables are row-oriented; great for row-by-row access, but when it comes to analytics, it can’t compete with a dedicated OLAP database that uses column-oriented storage. Or can it?Joining me this week is Philippe Noël of ParadeDB, who’s going to take us on a

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72:02

Designing Actor-Based Software (with Hugh McKee)

Developer Voices ·

2024/05/15

The actor model is a popular approach to building scalable software systems. And isn’t hard to understand when you’re just reading about the beginner’s examples. But how do you architect a complex design using the actor model? Which patterns work well? How do you think through it?Joining me to take us through it is Hugh McKee. Hugh’s a total actor-model fan, and a Developer Advocate for Lightbend (the company that created the popular actor framework Akka). He takes us from his definition of actors

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61:54

ByteWax: Rust's Research Meets Python's...

Developer Voices ·

2024/05/08

Bytewax is a curious stream processing tool that blends a Python surface with a Rust core to produce something that’s in a similar vein to Kafka Streams or Apache Flink, but with a fundamentally different implementation. This week we’re going to take a look at what it does, how it works in theory, and how the marriage of Python and Rust works in practice…–The original Naiad Paper: https://dl.acm.org/doi/10.1145/2517349.2522738Timely Dataflow: https://github.com/TimelyDataflow/timely-dataflowBytewax

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84:38

Mojo Lang - Tomorrow's High Performance Python? (with...

Developer Voices ·

2024/05/01

Mojo is the latest language from the creator of Swift and LLVM. It’s an attempt to take some of the best techniques from CPU/GPU-level programming and package them up in a Python-compatible syntax.In this episode we explore why Mojo was created, and what it offers to Python programmers and non-Python programmers alike. How is it built for performance, and which performance features matter? What’s its take on functional programming and type systems? And can it marry the high-level programming of

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51:46

Batch Data & Streaming Data in one Atom (with Jove...

Developer Voices ·

2024/04/24

Every database has to juggle the need to process new data and to query old data. That task falls to any system that “does stuff and remembers stuff”. But it’s quite hard to really optimise one system for both use cases. There are different constraints on new and old data, and as a system gets larger and larger, those differences multiply to breaking point. That’s something Twitter’s engineers were figuring out in the 2010s.One solution that came up in those years was the Lambda Architecture. A

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69:31

Advanced Memory Management in Vale (with Evan Ovadia)

Developer Voices ·

2024/04/17

Rust changed the discussion around memory management - this week's guest hopes to push that discussion even further.This week we're joined by Evan Ovadia, creator of the Vale programming language and collector of memory management techniques from far and wide. He takes us through his most important ones, including linear types, generation references and regions, to see what Evan hopes the future of memory management will look like.If you've been interested in Rust's borrow-check and want more (or

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66:29

Bringing Pure Python to Apache Kafka (with Tomáš...

Developer Voices ·

2024/04/03

The “big data infrastructure” world is dominated by Java, but the data-analysis world is dominated by Python. So if you need to analyse and process huge amounts of data, chances are you’re in for a less-than-ideal time. The impedance mismatch will probably make your life hard somehow.So there are a lot of projects and companies trying to solve that problem. To bridge those two worlds seamlessly, and many of the popular solutions see SQL as the glue. But this week we’re going to look at another

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63:47

Taking Erlang to OCaml 5 (with Leandro Ostera)

Developer Voices ·

2024/03/27

Erlang wears three hats - it’s a language, it’s a platform, and it’s an approach to making software run reliably once it’s in production. Those last two are so interesting I sometimes wonder why those ideas haven’t been ported to every language going. How much work would it be?This week we’re going to dig right down into that question with Leandro Ostera. He’s been working on Riot - a project to bring the best of Erlang’s runtime system and philosophy to OCaml. But why OCaml? Is it possible to marry

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74:28

How Apache Pinot Achieves 200,000 Queries per Second...

Developer Voices ·

2024/03/20

The likes of LinkedIn and Uber use Pinot to power some astonishingly high-scale queries against realtime data. The numbers alone would make an impressive case-study. But behind the headline lies a fascinating set of architectural decisions and constraints to get there. So how does Pinot work? How does it process queries? How are the various roles split across a cluster? And equally important - what does it *not* try to achieve.Joining me to go through the nuts and bolts of how Pinot handles SQL

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67:41

Neovim: Creating, Curating and Customising your Ideal...

Developer Voices ·

2024/03/13

TJ DeVries is a core contributor to Neovim and several of its most interesting sub-projects, and he joins us this week to go in depth into how Neovim got started, how it’s structured, and what a truly programmable editor has to offer programmers who want the perfect environment.Along the way we look at what we can learn from Neovim’s successful fork of the 30-year old codebase from Vim, how it still collaborates with the original project, and what putting Lua at the heart of the system has done for

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62:52

Creating Hackathons that Work (with Jon Gottfried)

Developer Voices ·

2024/03/06

Done right, a Hackathon can be a fantastic place to be a programmer - you get time and space to build and learn, in a room full of like-minded people, with swag and prizes to sweeten the deal. It’s a great way to pick up new ideas and run with them. But done wrong it can be a waste of time. What’s the difference between a good hackathon and a bad one? What do the good ones do right, and what can we learn from that?This week we’re talking about the Joy of Hacks with Major League Hacking Co-Founder

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67:09

Automate Your Way to Better Code: Advanced Property...

Developer Voices ·

2024/02/28

One of the most promising techniques for software reliability is property testing. The idea that, instead of writing unit tests we describe some property of our code that ought to always be true, then have the computer figure out thousands of unit tests that try to break that rule.For example, you might say, “No matter which page you visit on my website, there should always be a login button or a logout button.” Then the test’s job is to try to break that rule, but clicking around until it finds

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49:01

Bridging the Gap Between Languages (with Martin...

Developer Voices ·

2024/02/21

If you ever feel overwhelmed by the number of different programming languages, this week’s episode might just offer you some solace, as we talk about an attempt to reunify many of the most popular languages by focussing on the bread & butter things that every language supports.I’m joined by Martin Johansen, who’s been working on a new tool called Progsbase. With it, he’s created a spec based on all the things programming languages can agree on, and is building a library that can cross-compile

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99 results

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