I found this post about Erlang arrays quite interesting.
https://readreplica.io/functional-arrays-in-elixir-erlang/
cloudytoday
zediogoviana
There are several tutorials and alternatives to build a “Sign in with Metamask” for a dApp (decentralized application) using any modern JS Framework, but very limited content on how to do it using LiveView. In this blog post, I make an introduction to how this sign-in method works under the hood and how we can integrate it with some ease into a LiveView app.
PJUllrich
Author of Building Table Views with Phoenix LiveView
When uploading sensitive user files to S3, you better encrypt them or you risk data breaches and fines! This post explains how to encrypt, decrypt, upload, and download files from S3 and how to display them in LiveView.
realcorvus
Hi everyone, new article about how Elixir does not suffer from the thread safety issues often seen in web apps - How Elixir Solves a Difficult Security Problem
toberoni
Hi, my first blog post is a beginner-friendly tutorial that shows you how to implement a full text search in SQLite without any external dependencies:
ausimian
I read this and enjoyed it, but I think Elixir/Erlang are just as open to the kind of race described here as the Ruby code was, because the equivalent code in Elixir would be two independent processes reading / writing also to shared state, e.g. ETS (or even a third process). The problem isn’t the language (in this case), it is the shared state. You don’t even need true concurrency to provoke these errors, just a certain interleaving of events on the same thread.
miguelcoba
I wrote an article about ways to handle editing and previewing images in forms that use live_file_input.
Read it here:
I’d love to hear if you have alternative ways to handle this use case.
Thanks
szsoppa
Maintaining business logic in the web app (Phoenix Context in most cases) the right way is a must if you don’t want to refactor your project every year or two 
In this blog post, I’m presenting my approach to Phoenix Contexts’ maintainability.
zediogoviana
Even if you’re relatively new to the Elixir ecosystem, you have likely come across the concept of generators. These generators are very common and you may recognize them from running commands like mix new hello_world, or Phoenix related commands.
In this short post, I give an insight into how you can quickly set up your own generators and why the first Google link/ChatGPT answer is not always the best approach to the problem at hand.
dom
We also store the encryption salt or
encryption_iv, which protects the encrypted file from dictionary attacks.
The IV is critical but for different reasons, see e.g. Reused IV-Key Pair Vulnerability | SecureFlag Security Knowledge Base. A dictionary attack wouldn’t do much here since you’re generating the key from random bytes
But if we use the encryption key of the current user for decrypting the file, the result would be gibberish or worst-case, throw an error.
It would be better to use an authenticated mode (crypto_one_time_aead/6). That would ensure decryption fails if the wrong key is used, or more importantly, if someone tampers with the encrypted data.