Programming

This blog post is a tutorial on how to quickly write a formatter for a programming language from scratch using Topiary, our open-source formatting engine based on tree-sitter.

Test async tasks in Elixir without using Prosess.sleep but by - get this - actually waiting for them to complete!

We'll build a distributed rate limiter using HashRing for Elixir.

26 votes, 17 comments. While working on faelib.com , I had to implement uploading images and saving them in the file system. Below is how it went…

Last year at Rails World, I indulged in some horn tooting and victory-lap taking when I showed off the publishing platform and strength-training app I built to…

This guide details how to build efficient, concurrent ETL pipelines using Elixir and GenStage, offering insights into data validation and processing to enhance your data-driven applications.

Phoenix gives you a great headstart by leveraging the built-in telemetry of the BEAM, your OS and your Elixir code out of the box - learn how it saves you time and gets you up and running fast.

Some takeaways from my time with Phoenix LiveView

This is a how-to on translating Ecto changeset errors in Phoenix the right way.

The Dry-rb gem suite is a game-changer for Ruby developers who value clean, maintainable code. From robust input validation with dry-validation to building immutable, typed objects with dry-struct, these gems bring type safety, modularity, and clarity to your projects. Dive into five essential Dry-rb gems and transform your Ruby workflow!

Make your life significantly easier with these simple modifications

Down the rabbit hole

We created uuidkey to encode UUIDv7s with Crockford Base32 into human-readable keys that are sortable, indexable, and actually pleasant to look at.

Discover how to create a Typeahead component with Phoenix Framework and Elixir! I've shared the full code on my GitHub, so you can easily follow along and tr...

Planning a year of deliberate practice & applied engineering

A complete guide to Phoenix LiveView's new curly brace HEEx syntax, introduced in LiveView v1.0.0

Learn how to build a lightweight and flexible API in Elixir using Plug! This post dives into advanced techniques, like parsing JSON requests and crafting dynamic JSON responses, while showcasing the elegance of minimalistic API development.

Learn how horizontal scaling, serverless functions, and the modular FLAME system can optimize performance and cost-effectiveness for compute-intensive functions

Learn how to build desktop applications using Elixir and the Phoenix framework with Tauri.

Elixir and Phoenix tips, courses, and more.

[Dale Cook] has cats, and as he readily admits, cats are jerks. We’d use stronger language than that, but either way it became a significant impediment to making progress with an RFID-based s…

Learn how to build things from scratch

How i ended up writing an ebpf based program to trace processes for a github action.

If you’ve done your share of leetcode-style interviewing, and you’re above a certain age, you may have been asked during a technical screen to write a program that determines if a linke…

When you release Elixir applications, it comes with an start and stop command

As someone who loves experimenting with new technologies, I recently got the Vision Pro (I’m a big fan of VR and the idea of working in mixed reality). What excites me the most is sharing the cool stuff I discover, with my friends and colleagues, like how amazing it is to have a floating 3D […]