I am building a verification tool in Lean called Sober for Elixir/Erlang programs.
It uses your type specs to detect invariants.
It is pretty experimental but fun so far.
README has details #ElixirLang

I am building a verification tool in Lean called Sober for Elixir/Erlang programs.
It uses your type specs to detect invariants.
It is pretty experimental but fun so far.
README has details #ElixirLang
👨💻 Posted some follow-up observations about phoenix_test performance. #ElixirLang
TL;DR: Yes, it can be slower (because it is doing more helpful work), but `async: true` should be your first target if you're having trouble with test wall-clock time -- always.
Are you at ElixirConf US in Chicago? We should know each other!
SmartLogic is here, and we're proud to be a platinum sponsor.
Come by our booth, say hello, and guess what’s in the mystery box!
We're looking forward to seeing you! 🧙♀️
Allied Steel Buildings is hiring for an Elixir developer position. Check it out: buff.ly/v7OL22A
More Elixir jobs at buff.ly/AHDyD0s
Unlock the secrets of optimizing Elixir applications with GenStage! Discover how visualizations can clarify demand and backpressure management.
#development #ElixirLang #reading-list #tools
⚗️ Elixir Tip #18 - Enum group_by ⚗️
The Enum module is a treasure trove of awesome functions. One of those function that I use often is Enum.group_by so that I can group related data together for later processing.
🟢 Coding5s Lab: Elixir Concurrency & OTP (Advanced) by Wil Barrios https://notes.club/WilfredoBarrios/Coding5s-Elixir-OTP/Stage_1/it/advanced/32_topic_rpc_distribuito_e_remote_spawning_node_spawn_2_rpc_call_4 #ElixirLang
The 1st Roundtable moderated by Christian Koch is overpopulated! 🤯 You are amazing!
💬 A reminder while you're here: the Roundtable Discussions (Birds of a Feather) are one of the best parts of ElixirConf!
🇸🇪🗣️ Elixir Enthusiasts in Stockholm 🗣️🇸🇪
I’m recruiting on behalf of a healthcare start-up to hire a Backend Engineer to work from their office in Stockholm, Sweden
Elixir production experience not essential
More details/apply: Beamrec.com/jobs
👨💻 Hope everyone has a great #ElixirConf #ElixirLang.
I'm watching from home. If you see me in any of the virtual chats, say hi.
Happening now on Track 1: @josevalim.bsky.social's keynote 'Set-Theoretic Types from Scratch.' A deep dive into the type system shaping the future of Elixir.
#ElixirConf #ElixirConfUS #ElixirConfUS2026 #elixirlang #types
We're officially open! 🎉 Track 1 is live. Up next at 9:15: José Valim (@josevalim.bsky.social), creator of Elixir, with his keynote 'Set-Theoretic Types from Scratch.' Don't miss it.
#ElixirConf #ElixirConfUS #ElixirConfUS2026 #elixirlang #types
Same CEO two different companies: Is there a relation between $TSLA $SPCX?
Elon Musk is the CEO of Tesla and SpaceX. Is their performance related? How will that evolve in the future? Let’s see their current 15-, 20-, 30-, and 50-day stock return correlations.
Chapter 10: Building the Network by dgigafox https://notes.club/dgigafox/programming_machine_learning_livebooks/10_building_the_network/10_building_the_network #ElixirLang
Could someone take Fluffy for a walk?
fluffy.hexdocs.pm
Playwright-grounded feature tests for phoenix.
Composable locators, actionability checks, browser conformance.
Migrating a PhoenixTest base should be smooth sailing via Agent.
Worth switching? Eliminates workarounds? Performant?
#elixirlang
Preview of some rewrites coming to Quokka, courtesy of my coworker @katafrakt.eurosky.social at Jump...
Our DX team has leaned pretty heavily into trying to automate performance improvements like these. If the formatter can do it for you, why not? 😄
⚗️ Elixir Tip #17 - Time unity conversion ⚗️
Often times you'll need to convert time durations from millisecond to second or vice versa. Before reaching for a library to do that, check out System.convert_time_unit/3!
Biggest mover last Tuesday from "Mag 7" was $TSLA with a percent change of 3.98% 📈
Seeing all the "Mag 7" 30-day standard deviations, which one seems the riskiest to you?