netstack.fm
Netstack.fm is a podcast about networking, Rust, and everything in between. It explores the stack from protocols and packet flows to the people and projects building the modern internet, all through the lens of Rust. The show features deep dives, crate spotlights, and expert interviews, appealing to those interested in systems programming, networking theory, or the Rust ecosystem. It is produced by Plabayo BV, a European software studio based in Gent, Belgium.
Afleveringen
Building and testing network stacks with Rama
Episode 38: Building and testing network stacks with Rama.In this Protocol Shorts episode of Netstack.fm, Glen talks with Brecht Stamper about Rama, the modular Rust framework for building clients, servers, proxies, and other network systems. Brecht shares how he came to understand Rama’s core idea that everything is a service, and why that simple input to output contract makes it easier to compos
dial9: from black box to insight in Tokio
episode 37: dial9: from black box to insight in Tokio.In this episode of Netstack.fm, Glen talks with Jess Izen and Russell Cohen from Amazon about Dial9, a new tool for understanding what’s happening inside Rust and Tokio applications. They explain how it captures events from different layers of your system and puts them into a single timeline, making it much easier to debug tricky performance is
Protocol Shorts: WireGuard
Episode 36 – Protocol Shorts: WireGuardIn this Protocol Shorts episode of netstack.fm, we explore WireGuard, a modern and lightweight VPN protocol. Glen explains what makes it different from traditional VPNs and why its simplicity and security model are gaining attention among developers.The episode also highlights real world use cases and why VPNs like WireGuard remain essential for securely acce
OpenTelemetry, eBPF and Metoro (Ep 3 Remastered)
Episode 35 – OpenTelemetry, eBPF and Metoro (Ep 3 Remastered).In this remastered episode, Chris Batterbee, co-founder of Metoro, discusses the importance of observability in modern software systems, particularly in Kubernetes environments. He explains how Metoro leverages eBPF technology to simplify observability by automatically instrumenting applications. The discussion also covers the integrati
Tokio with Carl Lerche (Ep 5 Remastered)
Episode 34 — Tokio with Carl Lerche (Ep 5 Remastered).In this remastered episode, Glen speaks with Carl Lerche, the creator and maintainer of the Tokio Runtime, about his journey into technology, the evolution of programming languages, and the impact of Rust on the software development landscape. They discuss the rise of async programming, the development of networking libraries, and the future of
Protocol Shorts: TLS Encrypted Client Hello
Episode 33 – Protocol Shorts: TLS Encrypted Client Hello.This episode explores TLS Encrypted Client Hello (ECH) and how it improves privacy on the internet by hiding sensitive metadata that was previously exposed during the TLS handshake. While traditional TLS encrypts the actual data exchanged between client and server, key details like the Server Name Indication (SNI), which reveals the website
Datastar and Hypermedia (Ep 4 Remastered)
Episode 32 – Datastar and Hypermedia.In this remastered episode, Glen interviews Delaney, the creator of DataStar, a lightweight framework designed for building real-time collaborative web applications. Delaney shares his journey from being a 3D artist to a developer, emphasizing the importance of hypermedia and real-time visualization. The conversation delves into the efficiency of DataStar, its
Protocol Shorts: MITM Proxies and Transparent L4 Interception
episode 31 — Protocol Shorts: MITM Proxies and Transparent L4 Interception.In this second "Protocol Shorts" episode, we look at man-in-the-middle proxies from the transport layer up. The episode explains how HTTP proxies, HTTP CONNECT, and SOCKS5 differ, why they all assume a proxy-aware client, and what changes when a transparent layer 4 proxy is inserted by the operating system instead.From ther
uReq with Martin Algesten
episode 30: uReq with Martin Algesten.In this episode, we take a deep dive into uReq: why it was created, its history and origin, a high level overview, and explore in depth its protocols and implementation details. Learn more:https://github.com/algesten/ureq — A simple, safe HTTP clienthttps://github.com/algesten/ureq/blob/main/src/run.rs - example on how uReq and Sans IO come togetherhttps://dev
Hyper With Sean McArthur (Ep 2 Remastered)
Episode 29 – Hyper with Sean McArthur (Ep 2 Remastered).In this remastered episode, Glen interviews Sean McArthur, the creator and maintainer of the Hyper ecosystem. They discuss Sean's journey in software engineering, the evolution of Rust and asynchronous programming, and the growth of Hyper from its inception at Mozilla to its current status in the web development landscape. Sean shares insight
socketioxide with Théodore Prévot
episode 28: socketioxide with Théodore Prévot.This episode features an in-depth conversation with Théodore Prévot, creator and maintainer of the Rust crate socketioxide. We explore the origins of the project, how a personal writing app led to implementing a full Socket.IO server in Rust, and what it takes to build and maintain a high-level real-time protocol on top of Tokio, Tower, and the Rust HT
AI Policies, OSS Maintenance and EU Open Source Academy with Daniel Stenberg
episode 27: AI Policies, OSS Maintenance and EU Open Source Academy with Daniel Stenberg.This episode features a deep and pragmatic conversation with Daniel Stenberg, founder of cURL and president of the European Open Source Academy, reflecting on FOSDEM 2026, the growing role of open source in European policy, and what digital sovereignty means in practice; Daniel shares the motivation behind the
Email protocols with Mauro De Gennaro from Stalwart Labs
episode 26: Email protocols with Mauro De Gennaro from Stalwart Labs.This episode features an in depth conversation with Mauro De Gennaro of Stalwart Labs that demystifies how email actually works in practice, from SMTP delivery and DNS based routing to IMAP, JMAP, spam filtering, encryption, and authentication standards like DKIM, SPF, and DMARC, all through the lens of building and operating a m
FOSDEM 2026 special
episode 25: FOSDEM 2026 special.Recorded live from FOSDEM 2026.Learn more:https://fosdem.org/2026/ — FOSDEM 2026 websitehttps://fosdem.org/2026/schedule/event/CKANPK-programmable_networking_with_rama/ — FOSDEM 2026 rama talkhttps://www.nlnetlabs.nl/ — NLnet Labs websitehttps://github.com/NLnetLabs/roto — roto github repohttps://fosdem.org/2026/schedule/event/DS7LFX-rust-roto-calling-jit-compiled-s
WebAssembly and Rust in Practice, A Conversation with Alex Crichton
episode 24: WebAssembly and Rust in Practice, A Conversation with Alex Crichton.In this episode we sit down with Alex Crichton to talk about WebAssembly and Rust in practice. We discuss how Wasm grew beyond the browser into a serious runtime for servers and plugins, and why Rust fits so well in this space.We also explore WASI, the component model, and lessons from building Wasmtime, covering perfo
Protocol Shorts: HTTP as an Application Bus
episode 23 — Protocol Shorts: HTTP as an Application Bus.This is the debut of our "Protocol Shorts" series: fast-paced, high-density conversations with one or more expert guests centered around a common theme. In the "HTTP as an application bus" episode, we’re breaking down the tunneling renaissance—specifically the clever 'protocol-within-a-protocol' hacks that are changing the game.From hijackin
Rust URL with Simon Sapin
episode 22 — Rust URL with Simon Sapin.In this episode of Netstack.fm, Simon Sapin discusses building the rust-url crate based on the WHATWG URL specification. He also highlights that IDNA support was integrated to handle internationalized domain names, which includes critical security checks to prevent phishing from "confusable" characters that look identical to users.Learn more:https://docs.rs/u
GraphQL and Rust with Tom Houlé
episode 21 — GraphQL and Rust with Tom Houlé.In this episode of Netstack.fm, Glen and Tom Houlé discuss GraphQL's transition from a high-hype mobile data solution at Facebook to a mature enterprise technology. They explore technical challenges like the N+1 problem and persisted queries, as well as the rise of GraphQL Federation for unifying microservices in Rust-based gateways. Tom also highlights
Netstack.FM New Year Special, 2025 Wrap-Up
episode 20 — Netstack.FM New Year Special, 2025 Wrap-Up.This New Year special reflects on the first nineteen episodes of netstack.fm, highlighting key lessons about networking, Rust, open source, and the people behind the protocols and systems that power the internet. It also looks at the evolution of the Rama framework and sets the stage for continued learning, collaboration, and new conversation
Firezone and Zero-Trust Network Security with Thomas Eizinger
episode 19 — Firezone and Zero-Trust Network Security with Thomas Eizinger.In this episode of Netstack.fm, Glen talks with Thomas Eizinger from Firezone about designing a zero trust enterprise VPN built on top of WireGuard. They break down how modern VPNs work in practice, covering virtual network adapters, split tunneling, DNS interception, policy based access, and secure packet routing using Wir
Curiosity, Quake, and Networking with Fabien Sanglard
episode 18 — Curiosity, Quake, and Networking with Fabien Sanglard.Glen talks with Fabien Sanglard about curiosity driven engineering, from early computers and classic games like Doom and Quake to modern Android development and ADB. They discuss how networking evolved in games, why latency shaped multiplayer design, how Rust improves reliability in large systems, and why writing and diagrams are p
Early Web History and Interlisp with Larry Masinter
episode 17 — Early Web History and Interlisp with Larry Masinter.We sit down with internet pioneer and longtime IETF contributor Larry Masinter to revisit the origins of many technologies developers use every day. From his early days at Xerox PARC to co-authoring foundational RFCs on HTTP, URIs, and more, Larry shares first-hand stories that connect the early web to the world we build in now. The
WebRTC and Sans IO with Martin Algesten
episode 16 — WebRTC and Sans IO with Martin Algesten.We sit down with Rust developer Martin Algesten for a deep dive into WebRTC and the Sans IO approach to protocol design. Martin traces the surprising origins of WebRTC, explains why real time media over UDP is both powerful and painfully complex, and walks through how peer to peer connections work under the hood. The conversation then shifts to
Pingora with Edward and Noah from Cloudflare
episode 15 — Pingora with Edward and Noah from Cloudflare.In Episode 15 of netstack.fm, Glen sits down with Edward and Noah from Cloudflare to unpack the design of Pingora, the Rust based proxy framework that now powers Cloudflare’s origin facing traffic. The discussion covers why Cloudflare moved away from NGINX, how Pingora differs from Oxy, and what it takes to operate a high performance global
Roto And Cascade with Terts and Arya from NLnet Labs
Episode 14 – Roto And Cascade with Terts and Arya from NLnet Labs.In this episode we have a conversation with Terts and Arya from NLnet Labs. Together we explore their paths into systems programming, the mission of NLnet Labs, and the critical internet infrastructure the organization maintains. The discussion spans DNSSEC, large scale DNS operations, Rotonda, and the Roto scripting language, with
Inside Ping Proxies with Joseph Dye
Episode 13 – Inside Ping Proxies with Joseph Dye.In this episode of Netstack.fm, Glen from Plabayo talks with Joseph Dye (Joe), founding engineer at Ping Proxies, about building large-scale proxy infrastructure in Rust. Joe shares how he went from art student to programmer, joining Ping when it was a tiny startup running on Python and Squid. He explains how they rebuilt everything in Rust, creatin
Oxide Networking with Ryan Goodfellow
Episode 12 – Oxide Networking with Ryan Goodfellow.A conversation with Ryan Goodfellow about Rust networking at Oxide. We will explore the Oxide computer stack with a focus on network, including their fully integrated cloud computer, programmable networking with P4 and Dendrite, the Maghemite routing stack, and OPTE — a Rust-based packet engine running inside the kernel. Ryan also shares how his b
Modern networking in Firefox with Max Inden
Episode 11 – Modern networking in Firefox with Max Inden.A conversation with Max Inden, Staff Software Engineer at Mozilla, about modernizing Firefox’s networking stack in Rust. We cover his work on the QUIC and HTTP/3 stack — improving UDP I/O, congestion control, and overall performance — and why QUIC matters as a fast, encrypted, and evolvable transport for HTTP/3, WebTransport, and beyond.Lear
zerocopy with Joshua Liebow-Feeser
Episode 10 – zerocopy with Joshua Liebow-Feeser.A conversation with Joshua Liebow-Feeser, the developer behind netstack3 and the creator of zerocopy, a crate that makes zero-cost memory manipulation effortless. Originally built for Fuchsia, zerocopy is now used by over 400 crates on crates.io, with nearly 300 million downloads.We explore the origins of Fuchsia, the creation and purpose of zerocopy
gRPC with Lucio Franco
Episode 9 – gRPC with Lucio Franco.A deep dive into the world of asynchronous networking in Rust with Lucio Franco, maintainer of Tonic, Tower, Tokio, and Hyper. We explore the origins and design of gRPC and its Rust implementation, Tonic—how it came to be, what problems it solves, and why it matters. Along the way, Lucio shares insights into open source collaboration, Google’s work on gRPC for Ru
Fuchsia's Netstack3 with Bruno Dal Bo Silva
Episode 8 – Fuchsia's Netstack3 with Bruno Dal Bo Silva.In this episode our guest is Bruno Dal Bo Silva, Staff Software Engineer at Google. We will dive into his path into networking and Rust, and the story behind netstack3, the Rust-based networking stack built for Google’s Fuchsia operating system. We cover its origins from the Go-based netstack, why Rust was chosen, and the challenges of implem
Rustls with Dirkjan Ochtman
Episode 7 – Rustls with Dirkjan Ochtman.In this episode, we go through Dirkjan's extensive experience in software development, particularly focusing on Rust, TLS, and QUIC protocols.We explore Dirkjan his journey working on QUIC implementations to his contributions to Rust TLS and Hickory DNS. The conversation also delves into the ACME protocol and the Instant Domain Search project.Dirkjan shares
Curl with Daniel Stenberg
Episode 6 – Curl with Daniel Stenberg.In this episode of netstack.fm, Glen speaks with Daniel Stenberg, the creator and maintainer of Curl, one of the most widely used networking tools on the internet. They discuss Daniel's journey into programming and networking, the evolution of Curl from a simple tool to a comprehensive solution supporting multiple protocols, and the challenges of maintaining s
Tokio with Carle Lerche
Episode 5 – Tokio with Carl Lerche.In this episode of Netstack.fm, Glen speaks with Carl Lerche, the creator and maintainer of the Tokio Runtime, about his journey into technology, the evolution of programming languages, and the impact of Rust on the software development landscape. They discuss the rise of async programming, the development of networking libraries, and the future of Rust in infras
Datastar and Hypermedia
Episode 4 – Datastar and Hypermedia.You can find a remastered version of this episode as episode 32 (https://netstack.fm/#episode-32) for an improved listening experience with better audio quality. Released on the 24th of March 2026. Please listen to that episode instead of this one.In this episode, Glen interviews Delaney, the creator of DataStar, a lightweight framework designed for building rea
OpenTelemetry, eBPF, and Metoro
Episode 3 – OpenTelemetry, eBPF and Metoro.You can find a remastered version of this episode as episode 35 (https://netstack.fm/#episode-35) for an improved listening experience with better audio quality. Released on the 15th of April 2026. Please listen to that episode instead of this one. It also includes content not released in this episode.In this conversation, Chris Batterbee, co-founder of M
Hyper with Sean McArthur
Episode 2 – Hyper with Sean McArthur.You can find a remastered version of this episode as episode 29 (https://netstack.fm/#episode-29) for an improved listening experience with better audio quality. Released on the 3rd of March 2026. Please listen to that episode instead of this one.In this episode, Glen interviews Sean McArthur, the creator and maintainer of the Hyper ecosystem. They discuss Sean
Welcome to Netstack.fm
In the inaugural episode of NetStack FM, hosts Elizabeth and Glen introduce themselves and the purpose of the podcast, which is to explore the intersection of protocols and people in the tech industry. Glen shares his personal journey into technology, discussing his background in software development, gaming, and networking.The conversation highlights the challenges and learning experiences that s
