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eMudhra’s leaked CA keys reached my Phoenix app through 2 trust stores, and my first redeploy patched neither. How I fixed the OS bundle ...
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BEAM There, Done That with Davide Bettio & Giacomo Cavalieri on Gleam, AtomVM and Embedded BEAM
Key Points for the Elixir Community ...
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I wrote up what it took to ship logs and metrics from two small Docker Swarm clusters into PostHog with the OpenTelemetry Collector: an a...
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Using Latch (atproto OAuth client library | github | tangled) and Kite (atproto jetstream subscriber library | github | tangled) I wrote ...
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Turns out a 1ms network hiccup is enough to silently lose broadcasts for a node and that node is just quietly wrong forever
Wrote it up ...
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This Week's Trending
Hi everyone,
I’ve been building BetterTyping (https://bettertyping.org) on and off since 2021. It’s a free typing game: practice alone, ...
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Turns out a 1ms network hiccup is enough to silently lose broadcasts for a node and that node is just quietly wrong forever
Wrote it up ...
New
Semurg is a database for AI agent memory (a knowledge graph plus vectors, used over MCP) that we build in Elixir. This post walks one per...
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The code in this post is Erlang, but it all applies to Elixir binaries just the same: how appends, match contexts and sub-binaries behave...
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I wrote up what it took to ship logs and metrics from two small Docker Swarm clusters into PostHog with the OpenTelemetry Collector: an a...
New
Using Latch (atproto OAuth client library | github | tangled) and Kite (atproto jetstream subscriber library | github | tangled) I wrote ...
New
eMudhra’s leaked CA keys reached my Phoenix app through 2 trust stores, and my first redeploy patched neither. How I fixed the OS bundle ...
New
BEAM There, Done That with Davide Bettio & Giacomo Cavalieri on Gleam, AtomVM and Embedded BEAM
Key Points for the Elixir Community ...
New
This Month's Trending
Up until then, I found it very hard to communicate to LLMs that I specifically do not want to handle X case because maybe it has never ha...
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I finally found time to write down my journey away from ExMachina, including the workaround I tried first and the API experiments that fo...
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An automated trigger fired every two minutes for 8 hours. 243 agent runs. 31M tokens. $63 wasted. The problem: nobody noticed until morni...
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The words are insufficient to describe what transpired. What we tried to do met what the people wanted it to be. It became beautiful.
Th...
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A tribute to Margaret Hamilton’s fault-tolerant software opens a broad roundup of BEAM news: changes to Gleam compilation, Elixir type-sy...
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New episode with Ingela Andin - the OTP team member who has maintained the TLS stack for over 20 years and serves as the first point of c...
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Hi all,
I’ve built a small demo app to understand what an “AI agent” actually is under the hood, and to show it with Elixir’s own tools ...
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Recorded live from Goatmire in Varberg, we recap the conference, its Nerves-powered orchestra, LED tree, and badges, and discuss José Val...
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New episode with Alex Koutmos covering the overlap between Elixir and financial systems - practically, architecturally, and historically....
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Last month, bots fed strangers’ email addresses into my Phoenix app’s newsletter form, and corporate mail scanners like Microsoft Safe Li...
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A backtest worker and a live trading node had to share one broker rate limit and one set of OAuth tokens, and both only work if there’s e...
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I wrote a longread on how do I test code. Everything I gained from 10 years of experience writing code without any testing and 20 years w...
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New episode with Erik Stenman (Happi) - BEAM Book author, Erlang since 1994, builder of Klarna’s payment core - on what data sovereignty ...
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After writing about the importance of executable evidence and explaining how I’m using doctests to document known limitations and moduled...
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This Year's Trending
TL;DR:
Good: AI is great at Elixir. It gets better as your codebase grows.
Bad: It defaults to defensive, imperative code. You need...
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If I need to ship a new product in a week, Phoenix LiveView is my go-to framework.
Elixir LiveView is incredible, and an alluring choice...
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Hey folks,
I just published a post about Hologram’s funding and where the project goes next - the short version:
Curiosum as Main Spons...
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I am seeing a lot of aplications of Argumentum ad Vericundiam in software discussions. They do link some piece of writing and point us to...
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I wanted to write down some of the main guides I use when writing Elixir tests, so I have summarised them in blogpost.
Furthermore, I th...
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I ran Symphony through Giulia, here’s the AST analysis.
Yesterday, OpenAI open-sourced Symphony — an autonomous agent orchestration fra...
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Episode 309 of Thinking Elixir. This is it. The final episode of Thinking Elixir after six incredible years of weekly episodes! We send t...
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We just published a new episode of BEAM There, Done That that I think deserves a focused discussion here.
Peter Ullrich spent an afterno...
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A long-running GenServer holds orders, positions, strategy state, and operational flags for a system trading real capital. The post walks...
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Seriously, what do we do with logs in Elixir? There is seemingly no way to make them good both in dev and prod. This is especially notice...
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More optics in Funx: when you need multiple foci, use a traversal.
Includes a Livebook
<span class="hashtag-icon-placeholder"></span>...
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I’ve been bumping into some rough edges recently with Elixir dependencies that use app config and start their own supervision trees and I...
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Task.async(fn → Rust.performant() end)
Elixir :handshake: Rust
What actually happens when BEAM resilience meets Rust performance?
Flor...
New
Announcing Macro Mayhem
@gus and I have started a new podcast called Macro Mayhem!
We cover Elixir news and general industry topics ever...
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It is a strange time. I personally have seen a lot of people produce very high quality code using AI - code that is well factored and tes...
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Trending Last Three Years
Hi! :waving_hand:
I wanted to refresh my knowledge on how to mix phx.gen.auth with local password users db, as well as OAuth providers s...
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We all have varying degrees of exposure to Big Tech. Some of it seems fine, stable and can be relied on. Some of it feels like shifting s...
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One of the Erlang ecosystem’s spiciest nerd snipes are hot code updates. Because it can do it. In ways that almost no other runtime can.
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Elixir is a great language, but some behavior can be unintuitive, confusing and in the worst case lead to bugs. So, I took a look at 10 E...
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A comprehensive guide for deploying Phoenix 1.8 applications using Coolify on Hetzner servers. Covers server setup, Coolify configuration...
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I’m closing out, for now, my series on questions at the heart of development with an analysis of when we need more abstraction. For exam...
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Just wrote a new blog post about how to deploy a Phoenix app using Kamal 2. Check it out and let me know what do you think:
https://blog...
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How the Elixir community can survive — and thrive — in an age of LLMs.
New
In this article, we discuss how to create a Docker image for a Phoenix application.
https://t0ha.ru/en/devops/elixir/2023/11/10/how-to-b...
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This post explores different ways to do test automation in Elixir, focusing on how to handle dependency injection — covering patterns, li...
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Use the new log handlers to plug Slack or any other provider into your logging system.
https://rlopzc.com/posts/integrate-slack-into-the...
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How to set up the Content Security Policy header with Phoenix LiveView and support inline styles and scripts with CSP nonces.
New
In this post I explore the silos that exist in the Elixir ecosystem, the pros and cons, and what we can improve.
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I ran into an interesting problem recently where simple concurrency on the BEAM via Task.async made my application a lot slower and a lot...
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Learn how to leverage Erlang + Elixir’s GenServer to build a robust FTP Client.
https://rlopzc.com/posts/elixir-ftp-client-genserver-par...
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Trending Over 3 Years
Update:
How to use the Blogs & Podcasts section
You can post links to your blog posts or podcasts either in one of the Official Blog...
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How to use the blogs section
You can post links to your blog posts either in one of the Official Blog Posts threads (like this one), or, ...
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Please use this thread to post Elixir related podcasts you find or create :smiley:
Or, if you run a podcast yourself, you can now have a...
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I had a bit of a mini-adventure following Sobelow’s advice on adding a CSP to a Phoenix App. If you want to follow along, or want to add ...
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https://medium.com/blackode
This article comprises of two biggest changes of ExUnit.
Arguments in the failure report
Running mix tes...
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An infographic that compares Erlang, Elixir, and Go’s strengths in the respect to the programming languages’ concurrency, reliability, sc...
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Season four of the Elixir Wizards podcast launches today! This season we’re focused on system and application architecture. We’ll be doin...
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Our very handsome and humble José Valim (@josevalim) just published Kubernetes and the Erlang VM: orchestration on the large and the sma...
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Well, the only elixir specific thing about this is the site is written in Phoenix, but an important podcast for all open source advocates.
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Support for AlpineJS in LiveView was added in 0.13.3 and it works fabulously. I just wrote a blog article about it and plan another one s...
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Testing is an important part of any modern piece of software. But writing tests can quickly become an exercise in frustration, with tons ...
New
There are 3 main formatters for Erlang which you can use from the command-line,
rebar3_format,
Steamroller
elmfmt.
Visual Studio Code’...
New
Does the world need another How to create a blog article?
Maybe not.
But then again, creating something out of nothing is what we love....
New
This is an overview of different ways to try and kill an OTP process (in Elixir) and the behaviour to expect when that happens. I know th...
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Hello all!
I wrote a blog post called Elixir Observability: OpenTelemetry, Lightstep, Honeycomb. The post post covers how to integrate ...
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