Erlang & Elixir recap for week 20/2025
https://discu.eu/weekly/erlang/2025/20/
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#Elixir
To kick off our speaker announcements that will be going for the next couple of weeks as we have a lot of speakers to tell you about.
I saw a first version of this talk at ElixirConf EU and I look forward to Anita Ludermann sharing her story of Elixir adoption even more widely.
https://goatmire.com/speaker/anita-ludermann
#elixir
Popcorn: Run Elixir in WASM
Today's AI Struggle? An #elixir #phoenix app in the works. I decided I should encrypt a database field (an api access token) before I got too far along.
AI, what do you recommend? cloak_echo. Transparent encrypt/decrypt if you set up the machinery correctly? Cool -- let's give it a go.
At some point in testing i accidentally got an encrypted copy of the token into the database -- resulting in a double-encryption. Testing of API calls naturally failed. Skipping forward, AI was going in circles and got that resolved by adding a manual decryption after pulling the field. "Wait, isn't this module supposed to do this transparently?" "Why, yes, you're absolutely right! Let's remove the secondary decrypt..." "Now it fails; it worked before." "Oh, I'm sorry. I was mistaken. The module actually does require the secondary decryption; I'll add it."
At some point, I speculated there was a double encryption mishap. "Let's write the token in the expected path way." AI in Agent Mode? "Right, sure, let me add a manual call to decrypt back into the code."
In Agent Mode, there is no "Noooooooooo!!!!!"
It's all resolved now. What a nightmare...
... but still not unlike conference call debugging with folks describing what they see on the screen and their hands clicking away -- sometimes typing what you say.
🤔
#happySunday
AI, what do you recommend? cloak_echo. Transparent encrypt/decrypt if you set up the machinery correctly? Cool -- let's give it a go.
At some point in testing i accidentally got an encrypted copy of the token into the database -- resulting in a double-encryption. Testing of API calls naturally failed. Skipping forward, AI was going in circles and got that resolved by adding a manual decryption after pulling the field. "Wait, isn't this module supposed to do this transparently?" "Why, yes, you're absolutely right! Let's remove the secondary decrypt..." "Now it fails; it worked before." "Oh, I'm sorry. I was mistaken. The module actually does require the secondary decryption; I'll add it."
At some point, I speculated there was a double encryption mishap. "Let's write the token in the expected path way." AI in Agent Mode? "Right, sure, let me add a manual call to decrypt back into the code."
In Agent Mode, there is no "Noooooooooo!!!!!"
It's all resolved now. What a nightmare...
... but still not unlike conference call debugging with folks describing what they see on the screen and their hands clicking away -- sometimes typing what you say.
🤔
#happySunday
🛠️ Achieving Reproducible Elixir Dev Environments with Lexical + Nix
https://beamops.co.uk/blog/reproducible-dev-shells
Discussions: https://discu.eu/q/https://beamops.co.uk/blog/reproducible-dev-shells
｢ Compiled Elixir code is executed in the client-side AtomVM runtime. Popcorn offers APIs for interactions between Elixir and JavaScript, handling serialization and communication, as well as ensuring browser responsiveness ｣
Hello all!
It’s been a little while 😅
I’ve been working on this site: https://armitagesarchive.com
It started as a way to learn #elixir and the #PhoenixFramework — but it’s turned into something I’m genuinely proud of.
The goal is simple: a design-forward, minimalist way to browse all the highlights I’ve made from books and articles over the years.
If you're curious about the design choices (fonts, stack, intent), check out: https://armitagesarchive.com/colophon
Would love to hear what you think.
Quick #elixir question..
I'm going through a pretty new course that has things like
<%= variable %>
But realize my lsp is auto correcting that to
{ variable }
But there are still times where it keeps <% ... %>
I feel like i'm missing something...
erl and iex support some pretty handy keystrokes: https://www.erlang.org/doc/apps/erts/tty.html
Popcorn https://popcorn.swmansion.com/ run #elixir in #wasm
Fantastic article from Andrea Leopardi about singletons, ownership and async tests. I didn't know about the ProcessTree package (I thought this has to be done manually using $callers).
https://andrealeopardi.com/posts/async-tests-in-elixir/
#Elixir
https://andrealeopardi.com/posts/async-tests-in-elixir/
#Elixir
Popcorn: Run Elixir in WASM
https://popcorn.swmansion.com/
Discussions: https://discu.eu/q/https://popcorn.swmansion.com/
🥳 Behold, the groundbreaking "Popcorn"—because who doesn't want to run #Elixir in #WASM in their #browser, right? 📚✨ It's like taking the latest quantum computing tech to toast your bread! 🍞🔥 Prepare yourself for thrilling adventures in #API serialization and buzzing browser responsiveness. 😂🚀
https://popcorn.swmansion.com/ #Popcorn #quantumcomputing #HackerNews #ngated
Popcorn: Run Elixir in WASM
https://popcorn.swmansion.com/
#HackerNews #Popcorn #Elixir #WASM #WebAssembly #Programming #Innovation
Implement Multi-Tenancy in Phoenix 1.8 -> Scopes!
Well, I can at least be confident that no matter what - my elixir docs will be better than Google's elixir docs - but its an incredibly low bar.
Next #Elixir Meetup Kiel will take place in 4 weeks. 🚀 We are happy to welcome anyone interested!
All details: https://www.meetup.com/elixir-meetup-kiel/events/307859503/ #myelixirstatus
Client Info
Server: https://mastodon.social
Version: 2025.04
Repository: https://github.com/cyevgeniy/lmst