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BEAM There, Done That

by Plangora
Tecnologia
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Latest episodes

  • Embedded Gleam for Everyone: D. Bettio & G. Cavalieri on Microcontrollers

    October 23, 2026 · 57 min

    In 2017, Davide Bettio created AtomVM to run Erlang, Elixir and Gleam code on embedded devices with just a few kilobytes of memory. Fast forward to today, and Giacomo Cavalieri of the Gleam core team has built tooling that flashes a Gleam…

  • Data Sovereignty & Local-First AI: Building Eldrim with Erik Stenman

    October 16, 2026 · 42 min

    On Christmas Eve, the BEAM's scheduler throttled down to save power. A batch job arrived. A Christmas worth of XML took down all three failover nodes. The Klarna CEO called. Erik Stenman was already at his desk. That incident sent him deep…

  • Ingela Andin on the TLS Stack Running Under Every BEAM App

    October 9, 2026 · 39 min

    Every secure connection made from an Erlang, Elixir, or Gleam application runs through code she wrote. Most developers have never heard her name. Ingela Andin has spent more than two decades on the OTP team at Ericsson, maintaining the TLS…

  • Alex Koutmos on Elixir for Finance, Trading & Blockchain

    October 2, 2026 · 1 hr 3 min

    Brex runs on Elixir. Klarna runs on Erlang. Mastercard is believed to use it. And most of the community that builds on these systems watches them with PromEx - a library written by today's guest. Alex Koutmos has been in the Elixir…

  • Kip Cole on Time, Localization and Building Agenda

    September 25, 2026 · 1 hr 9 min

    The Navajo Nation inside Arizona observes daylight saving. The Hopi reservation inside the Navajo Nation skips it again. There's a corner of the Yucatan Peninsula that takes 20 minutes to drive through and costs you an hour on your sat…

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  • Is Your Elixir Code Actually Fast? Tobias Pfeiffer on Benchmarking

    September 18, 2026 · 1 hr 11 min

    Everyone has an opinion about whether the BEAM is fast or slow. Almost nobody has actually measured it properly. Tobias Pfeiffer -PragTob on the internet, benchmarking nerd, real-time engineer at Supabase -came to Elixir from Ruby because…

  • Louis Pilfold on Building Gleam - Static Types on the BEAM

    September 11, 2026 · 1 hr 12 min

    What if the BEAM had a language that felt like talking to a friend instead of fighting a compiler? That's the problem Louis Pilfold set out to solve. He loved the BEAM. He missed static types. Every other option was a tradeoff he couldn't…

  • How WhatsApp Fixed Erlang's Tooling Problem | Roberto Aloi & Michał Muskała

    September 4, 2026 · 37 min

    Part one established that Erlang scales. Part two is about what comes after - keeping a codebase that large healthy for years, when most engineers arrive having never written Erlang before. WhatsApp's answer was to invest in the language…

  • Inside WhatsApp with Roberto Aloi & Michał Muskała

    August 28, 2026 · 35 min

    Everyone quotes WhatsApp when the topic of Erlang and scale comes up. Fewer people know what it actually looks like from the inside - what was hard, what was never hard, and what the team spent their time on once the concurrency stopped…

  • Erlang on a Microcontroller: Davide Bettio & Paul Guyot on AtomVM

    August 21, 2026 · 55 min

    In 1952, Marvin Minsky and Claude Shannon built a box with a single switch. When you flip it, the only thing it does is reach out and switch itself back off. Seventy years later, 5,000 of those boxes are sitting on desks worldwide — and…

  • Mat Trudel on Building Bandit - the Web Server Running Your Phoenix App

    August 14, 2026 · 1 hr 20 min

    Bandit quietly became the default web server in Phoenix. Mat Trudel wrote it by hand, in pure Elixir, as a side project - and kept it that way even as AI changed how everyone else writes code. This episode goes two places at once: the…

  • Erlang Without an OS: Maxim Kharchenko on Building LING

    August 7, 2026 · 1 hr 3 min

    Booting OTP without a Linux kernel underneath it. Running Erlang directly on a Xen hypervisor. Implementing a VM where every single out-of-memory condition is explicitly handled — not a single allocation without a recovery path. Maxim…

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About the show

BEAM There, Done That is a podcast about building real systems with Elixir, Erlang, and the BEAM. We’ve built it before — distributed systems, fault‑tolerant services, event pipelines, real‑time apps, production nightmares, and the supervision trees that saved them. Each episode dives into practical lessons from shipping software on the BEAM: architecture decisions, scaling challenges, operational failures, and the patterns that actually work. No hype. No theory without scars. Just hard‑won experience from engineers who’ve been there.