An Unusual Pomodoro Timer on Elixir and Nerves

In my previous post about “Organising Book Highlights and Notes”, I wrote:

“Some day I may build a gadget for my desk to display a daily quote”.

A few days later, it’s on my desk and it couldn’t have been a better pretext to give Livebook on Nerves a try.

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Organising Book Highlights and Notes

I’ve used a variety of tools to organise my reading and notes. Given I spend a significant amount of my time studying, depending on 3rd parties gives me anxiety. Any of the tools I use, even the open-source offline-first ones, can become unmaintained, ridden with security vulnerabilities, slow or they may change in way which makes me reluctant to use them.

To some extent, this post is a sequel to “knowledge mapping”.

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Phoenix Telemetry

Telemetry is becoming the defacto library to instrument and publish metrics in Elixir apps. This post is a step-by-step guide to integrate Telemetry in a Phoenix app which leverages Opus.

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sidekiq-dry

I published a new gem, sidekiq-dry aiming to tackle a variety of common frustrations when it comes to Sidekiq jobs and their arguments.

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Knowledge Mapping

What do I know? What do we know?

How do we know what we know and what is there that we should know?

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Writing a Command-Line Application in Elixir

I’ve always been fascinated by well-made applications for the terminal. Who doesn’t install htop on a new machine, am I right? My plan was to build something that I’d use daily and other people would potentially find useful. Therefore I decided to build a cli app for Tefter. It’s built on Elixir and Ratatouille and it’s open-source. Check out the source or download and try it or install via brew. … Read more

A Slack bookmarking application in Elixir with Opus

This post describes how we used Elixir and Opus in one of our services at Tefter, which implements bookmarking collaboration in Slack. My relationship with Slack I remember, when Slack started getting viral and it was set as the main chat app at work, I was very reluctant to use it. I was quite happy with IRC and always in favour of open protocols. Since it supported an IRC / XMPP gateway, tweaking my irssi config and later finch was trivial and my overall experience was good. … Read more

ElixirConf.EU 2019

I was lucky enough to attend ElixirConf.EU for the third time and in this post I’m sharing some thoughts about the talks I saw, some of my notes and insights on the future of this community in general. Location I’d never visited Prague before and the conf was an amazing opportunity to combine business and pleasure. While writing this post though, a week after, I realised I didn’t visit most of the landmarks that I was planning to. … Read more

Observer Live

Yesterday I published a demo of my port of observer_cli using LiveView. It took me a few of minutes to familiarise myself with this new web development concept. The docs are clear, accurate and provide a very smooth introduction to the capabilities of this interactive server-side rendering way of doing things. I have to say that I’m really impressed 🙂. You can try the demo yourself here. Or.. check out this gif. … Read more

The 10-minute Rails Pub/Sub

This time we’ll experiment with a quick way to architecture a Rails application to use Pub/Sub instead of model callbacks. What’s wrong with callbacks Rails active record models easily become bloated, that’s where most of the business logic tends to live after all. One of the most common sources of technical debt in Rails apps is callbacks. Models become god-objects with dependencies to other models, mailers and even 3rd party services. … Read more